---
_id: '40984'
abstract:
- lang: eng
text: A two-step seeded-growth method was refined to synthesize Au@Pd core@shell
nanoparticles with thin Pd shells, which were then deposited onto alumina to obtain
a supported Au@Pd/Al2O3 catalyst active for prototypical CO oxidation. By the
strict control of temperature and Pd/Au molar ratio and the use of l-ascorbic
acid for making both Au cores and Pd shells, a 1.5 nm Pd layer is formed around
the Au core, as evidenced by transmission electron microscopy and energy-dispersive
spectroscopy. The core@shell structure and the Pd shell remain intact upon deposition
onto alumina and after being used for CO oxidation, as revealed by additional
X-ray diffraction and X-ray photoemission spectroscopy before and after the reaction.
The Pd shell surface was characterized with in situ infrared (IR) spectroscopy
using CO as a chemical probe during CO adsorption–desorption. The IR bands for
CO ad-species on the Pd shell suggest that the shell exposes mostly low-index
surfaces, likely Pd(111) as the majority facet. Generally, the IR bands are blue-shifted
as compared to conventional Pd/alumina catalysts, which may be due to the different
support materials for Pd, Au versus Al2O3, and/or less strain of the Pd shell.
Frequencies obtained from density functional calculations suggest the latter to
be significant. Further, the catalytic CO oxidation ignition-extinction processes
were followed by in situ IR, which shows the common CO poisoning and kinetic behavior
associated with competitive adsorption of CO and O2 that is typically observed
for noble metal catalysts.
author:
- first_name: Yanyue
full_name: Feng, Yanyue
last_name: Feng
- first_name: Andreas
full_name: Schaefer, Andreas
last_name: Schaefer
- first_name: Anders
full_name: Hellman, Anders
last_name: Hellman
- first_name: Mengqiao
full_name: Di, Mengqiao
last_name: Di
- first_name: Hanna
full_name: Härelind, Hanna
last_name: Härelind
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Per-Anders
full_name: Carlsson, Per-Anders
last_name: Carlsson
citation:
ama: Feng Y, Schaefer A, Hellman A, et al. Synthesis and Characterization of Catalytically
Active Au Core─Pd Shell Nanoparticles Supported on Alumina. Langmuir. 2022;38(42):12859-12870.
doi:10.1021/acs.langmuir.2c01834
apa: Feng, Y., Schaefer, A., Hellman, A., Di, M., Härelind, H., Bauer, M., &
Carlsson, P.-A. (2022). Synthesis and Characterization of Catalytically Active
Au Core─Pd Shell Nanoparticles Supported on Alumina. Langmuir, 38(42),
12859–12870. https://doi.org/10.1021/acs.langmuir.2c01834
bibtex: '@article{Feng_Schaefer_Hellman_Di_Härelind_Bauer_Carlsson_2022, title={Synthesis
and Characterization of Catalytically Active Au Core─Pd Shell Nanoparticles Supported
on Alumina}, volume={38}, DOI={10.1021/acs.langmuir.2c01834},
number={42}, journal={Langmuir}, publisher={American Chemical Society (ACS)},
author={Feng, Yanyue and Schaefer, Andreas and Hellman, Anders and Di, Mengqiao
and Härelind, Hanna and Bauer, Matthias and Carlsson, Per-Anders}, year={2022},
pages={12859–12870} }'
chicago: 'Feng, Yanyue, Andreas Schaefer, Anders Hellman, Mengqiao Di, Hanna Härelind,
Matthias Bauer, and Per-Anders Carlsson. “Synthesis and Characterization of Catalytically
Active Au Core─Pd Shell Nanoparticles Supported on Alumina.” Langmuir 38,
no. 42 (2022): 12859–70. https://doi.org/10.1021/acs.langmuir.2c01834.'
ieee: 'Y. Feng et al., “Synthesis and Characterization of Catalytically Active
Au Core─Pd Shell Nanoparticles Supported on Alumina,” Langmuir, vol. 38,
no. 42, pp. 12859–12870, 2022, doi: 10.1021/acs.langmuir.2c01834.'
mla: Feng, Yanyue, et al. “Synthesis and Characterization of Catalytically Active
Au Core─Pd Shell Nanoparticles Supported on Alumina.” Langmuir, vol. 38,
no. 42, American Chemical Society (ACS), 2022, pp. 12859–70, doi:10.1021/acs.langmuir.2c01834.
short: Y. Feng, A. Schaefer, A. Hellman, M. Di, H. Härelind, M. Bauer, P.-A. Carlsson,
Langmuir 38 (2022) 12859–12870.
date_created: 2023-01-30T16:22:57Z
date_updated: 2023-01-31T08:00:11Z
department:
- _id: '35'
- _id: '306'
doi: 10.1021/acs.langmuir.2c01834
intvolume: ' 38'
issue: '42'
keyword:
- Electrochemistry
- Spectroscopy
- Surfaces and Interfaces
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
page: 12859-12870
publication: Langmuir
publication_identifier:
issn:
- 0743-7463
- 1520-5827
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Synthesis and Characterization of Catalytically Active Au Core─Pd Shell Nanoparticles
Supported on Alumina
type: journal_article
user_id: '48467'
volume: 38
year: '2022'
...
---
_id: '40993'
abstract:
- lang: eng
text: Understanding high-temperature unconventional superconductivity has become
a long-lasting problem in which the cuprates stand as central reference materials.
Given this impasse, the recent discovery of superconductivity in analogous nickelate
thin films represents a fundamental breakthrough calling for the identification
of additional materials in this class. In particular, thermodynamically more robust
systems are required to “upgrade” nickelate superconductors from thin films to
bulk samples. Here, we contribute in this direction by reporting the synthesis
of the new single-layer T′ Pr2NiO3F compound, assessing this synthesis in relation
to the only previous T′ nickelate La2NiO3F, and analyzing the electronic properties
across the R2NiO3F series (R = La–Lu) via first-principles calculations. We find
that these mixed anion systems have a comparatively high degree of stability and
their synthesis enables a fine-tuning of their composition as inferred from their
characterization. Furthermore, we find that these unprecedented square-planar
nickelates hold great promise as prospective superconductors due to their exceptional
electronic structure.
author:
- first_name: Kerstin
full_name: Wissel, Kerstin
last_name: Wissel
- first_name: Fabio
full_name: Bernardini, Fabio
last_name: Bernardini
- first_name: Heesu
full_name: Oh, Heesu
last_name: Oh
- first_name: Sami
full_name: Vasala, Sami
last_name: Vasala
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Björn
full_name: Blaschkowski, Björn
last_name: Blaschkowski
- first_name: Pieter
full_name: Glatzel, Pieter
last_name: Glatzel
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Oliver
full_name: Clemens, Oliver
last_name: Clemens
- first_name: Andrés
full_name: Cano, Andrés
last_name: Cano
citation:
ama: 'Wissel K, Bernardini F, Oh H, et al. Single-Layer T′ Nickelates: Synthesis
of the La and Pr Members and Electronic Properties across the Rare-Earth Series.
Chemistry of Materials. 2022;34(16):7201-7209. doi:10.1021/acs.chemmater.2c00726'
apa: 'Wissel, K., Bernardini, F., Oh, H., Vasala, S., Schoch, R., Blaschkowski,
B., Glatzel, P., Bauer, M., Clemens, O., & Cano, A. (2022). Single-Layer T′
Nickelates: Synthesis of the La and Pr Members and Electronic Properties across
the Rare-Earth Series. Chemistry of Materials, 34(16), 7201–7209.
https://doi.org/10.1021/acs.chemmater.2c00726'
bibtex: '@article{Wissel_Bernardini_Oh_Vasala_Schoch_Blaschkowski_Glatzel_Bauer_Clemens_Cano_2022,
title={Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic
Properties across the Rare-Earth Series}, volume={34}, DOI={10.1021/acs.chemmater.2c00726},
number={16}, journal={Chemistry of Materials}, publisher={American Chemical Society
(ACS)}, author={Wissel, Kerstin and Bernardini, Fabio and Oh, Heesu and Vasala,
Sami and Schoch, Roland and Blaschkowski, Björn and Glatzel, Pieter and Bauer,
Matthias and Clemens, Oliver and Cano, Andrés}, year={2022}, pages={7201–7209}
}'
chicago: 'Wissel, Kerstin, Fabio Bernardini, Heesu Oh, Sami Vasala, Roland Schoch,
Björn Blaschkowski, Pieter Glatzel, Matthias Bauer, Oliver Clemens, and Andrés
Cano. “Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic
Properties across the Rare-Earth Series.” Chemistry of Materials 34, no.
16 (2022): 7201–9. https://doi.org/10.1021/acs.chemmater.2c00726.'
ieee: 'K. Wissel et al., “Single-Layer T′ Nickelates: Synthesis of the La
and Pr Members and Electronic Properties across the Rare-Earth Series,” Chemistry
of Materials, vol. 34, no. 16, pp. 7201–7209, 2022, doi: 10.1021/acs.chemmater.2c00726.'
mla: 'Wissel, Kerstin, et al. “Single-Layer T′ Nickelates: Synthesis of the La and
Pr Members and Electronic Properties across the Rare-Earth Series.” Chemistry
of Materials, vol. 34, no. 16, American Chemical Society (ACS), 2022, pp.
7201–09, doi:10.1021/acs.chemmater.2c00726.'
short: K. Wissel, F. Bernardini, H. Oh, S. Vasala, R. Schoch, B. Blaschkowski, P.
Glatzel, M. Bauer, O. Clemens, A. Cano, Chemistry of Materials 34 (2022) 7201–7209.
date_created: 2023-01-30T16:44:52Z
date_updated: 2023-01-31T08:01:26Z
department:
- _id: '35'
- _id: '306'
doi: 10.1021/acs.chemmater.2c00726
intvolume: ' 34'
issue: '16'
keyword:
- Materials Chemistry
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
page: 7201-7209
publication: Chemistry of Materials
publication_identifier:
issn:
- 0897-4756
- 1520-5002
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: 'Single-Layer T′ Nickelates: Synthesis of the La and Pr Members and Electronic
Properties across the Rare-Earth Series'
type: journal_article
user_id: '48467'
volume: 34
year: '2022'
...
---
_id: '40985'
author:
- first_name: Johannes
full_name: Moll, Johannes
last_name: Moll
- first_name: Robert
full_name: Naumann, Robert
last_name: Naumann
- first_name: Lukas
full_name: Sorge, Lukas
last_name: Sorge
- first_name: Christoph
full_name: Förster, Christoph
last_name: Förster
- first_name: Niklas
full_name: Gessner, Niklas
last_name: Gessner
- first_name: Lukas
full_name: Burkhardt, Lukas
id: '54038'
last_name: Burkhardt
orcid: 0000-0003-0747-9811
- first_name: Naz
full_name: Ugur, Naz
last_name: Ugur
- first_name: Patrick
full_name: Nuernberger, Patrick
last_name: Nuernberger
- first_name: Wolfram
full_name: Seidel, Wolfram
last_name: Seidel
- first_name: Charusheela
full_name: Ramanan, Charusheela
last_name: Ramanan
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Katja
full_name: Heinze, Katja
last_name: Heinze
citation:
ama: Moll J, Naumann R, Sorge L, et al. Pseudo‐Octahedral Iron(II) Complexes with
Near‐Degenerate Charge Transfer and Ligand Field States at the Franck‐Condon Geometry.
Chemistry – A European Journal. 2022;28(57). doi:10.1002/chem.202201858
apa: Moll, J., Naumann, R., Sorge, L., Förster, C., Gessner, N., Burkhardt, L.,
Ugur, N., Nuernberger, P., Seidel, W., Ramanan, C., Bauer, M., & Heinze, K.
(2022). Pseudo‐Octahedral Iron(II) Complexes with Near‐Degenerate Charge Transfer
and Ligand Field States at the Franck‐Condon Geometry. Chemistry – A European
Journal, 28(57). https://doi.org/10.1002/chem.202201858
bibtex: '@article{Moll_Naumann_Sorge_Förster_Gessner_Burkhardt_Ugur_Nuernberger_Seidel_Ramanan_et
al._2022, title={Pseudo‐Octahedral Iron(II) Complexes with Near‐Degenerate Charge
Transfer and Ligand Field States at the Franck‐Condon Geometry}, volume={28},
DOI={10.1002/chem.202201858},
number={57}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Moll,
Johannes and Naumann, Robert and Sorge, Lukas and Förster, Christoph and Gessner,
Niklas and Burkhardt, Lukas and Ugur, Naz and Nuernberger, Patrick and Seidel,
Wolfram and Ramanan, Charusheela and et al.}, year={2022} }'
chicago: Moll, Johannes, Robert Naumann, Lukas Sorge, Christoph Förster, Niklas
Gessner, Lukas Burkhardt, Naz Ugur, et al. “Pseudo‐Octahedral Iron(II) Complexes
with Near‐Degenerate Charge Transfer and Ligand Field States at the Franck‐Condon
Geometry.” Chemistry – A European Journal 28, no. 57 (2022). https://doi.org/10.1002/chem.202201858.
ieee: 'J. Moll et al., “Pseudo‐Octahedral Iron(II) Complexes with Near‐Degenerate
Charge Transfer and Ligand Field States at the Franck‐Condon Geometry,” Chemistry
– A European Journal, vol. 28, no. 57, 2022, doi: 10.1002/chem.202201858.'
mla: Moll, Johannes, et al. “Pseudo‐Octahedral Iron(II) Complexes with Near‐Degenerate
Charge Transfer and Ligand Field States at the Franck‐Condon Geometry.” Chemistry
– A European Journal, vol. 28, no. 57, Wiley, 2022, doi:10.1002/chem.202201858.
short: J. Moll, R. Naumann, L. Sorge, C. Förster, N. Gessner, L. Burkhardt, N. Ugur,
P. Nuernberger, W. Seidel, C. Ramanan, M. Bauer, K. Heinze, Chemistry – A European
Journal 28 (2022).
date_created: 2023-01-30T16:23:37Z
date_updated: 2023-01-31T08:00:32Z
department:
- _id: '35'
- _id: '306'
doi: 10.1002/chem.202201858
intvolume: ' 28'
issue: '57'
keyword:
- General Chemistry
- Catalysis
- Organic Chemistry
language:
- iso: eng
publication: Chemistry – A European Journal
publication_identifier:
issn:
- 0947-6539
- 1521-3765
publication_status: published
publisher: Wiley
status: public
title: Pseudo‐Octahedral Iron(II) Complexes with Near‐Degenerate Charge Transfer and
Ligand Field States at the Franck‐Condon Geometry
type: journal_article
user_id: '48467'
volume: 28
year: '2022'
...
---
_id: '41008'
author:
- first_name: Philipp
full_name: Dierks, Philipp
last_name: Dierks
citation:
ama: Dierks P. Synthesis and Characterization of Multichromophoric Iron(II) Complexes
as Novel Photosensitizers.; 2022. doi:10.17619/UNIPB/1-1558
apa: Dierks, P. (2022). Synthesis and characterization of multichromophoric iron(II)
complexes as novel photosensitizers. https://doi.org/10.17619/UNIPB/1-1558
bibtex: '@book{Dierks_2022, title={Synthesis and characterization of multichromophoric
iron(II) complexes as novel photosensitizers}, DOI={10.17619/UNIPB/1-1558},
author={Dierks, Philipp}, year={2022} }'
chicago: Dierks, Philipp. Synthesis and Characterization of Multichromophoric
Iron(II) Complexes as Novel Photosensitizers, 2022. https://doi.org/10.17619/UNIPB/1-1558.
ieee: P. Dierks, Synthesis and characterization of multichromophoric iron(II)
complexes as novel photosensitizers. 2022.
mla: Dierks, Philipp. Synthesis and Characterization of Multichromophoric Iron(II)
Complexes as Novel Photosensitizers. 2022, doi:10.17619/UNIPB/1-1558.
short: P. Dierks, Synthesis and Characterization of Multichromophoric Iron(II) Complexes
as Novel Photosensitizers, 2022.
date_created: 2023-01-30T17:01:36Z
date_updated: 2023-01-31T08:19:20Z
department:
- _id: '35'
- _id: '306'
doi: 10.17619/UNIPB/1-1558
language:
- iso: eng
status: public
supervisor:
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
title: Synthesis and characterization of multichromophoric iron(II) complexes as novel
photosensitizers
type: dissertation
user_id: '27611'
year: '2022'
...
---
_id: '41014'
author:
- first_name: Marina
full_name: Huber-Gedert, Marina
last_name: Huber-Gedert
citation:
ama: Huber-Gedert M. Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic
Hydrogen Evolution.; 2022.
apa: Huber-Gedert, M. (2022). Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic
Hydrogen Evolution.
bibtex: '@book{Huber-Gedert_2022, title={Base Metal Iron(II)-Cobalt(III) Dyads for
Photocatalytic Hydrogen Evolution}, author={Huber-Gedert, Marina}, year={2022}
}'
chicago: Huber-Gedert, Marina. Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic
Hydrogen Evolution, 2022.
ieee: M. Huber-Gedert, Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic
Hydrogen Evolution. 2022.
mla: Huber-Gedert, Marina. Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic
Hydrogen Evolution. 2022.
short: M. Huber-Gedert, Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic
Hydrogen Evolution, 2022.
date_created: 2023-01-30T17:02:51Z
date_updated: 2023-01-31T08:19:30Z
department:
- _id: '35'
- _id: '306'
language:
- iso: eng
status: public
supervisor:
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
title: Base Metal Iron(II)-Cobalt(III) Dyads for Photocatalytic Hydrogen Evolution
type: dissertation
user_id: '27611'
year: '2022'
...
---
_id: '35707'
abstract:
- lang: eng
text: The proton conductivity of two coordination networks, [Mg(H2O)2(H3L)]·H2O
and [Pb2(HL)]·H2O (H5L
= (H2O3PCH2)2-NCH2-C6H4-SO3H),
is investigated by AC impedance spectroscopy. Both materials contain the same
phosphonato-sulfonate linker molecule, but have clearly different crystal structures,
which has a strong effect on proton conductivity. In the Mg-based coordination
network, dangling sulfonate groups are part of an extended hydrogen bonding network,
facilitating a “proton hopping” with low activation energy; the material shows
a moderate proton conductivity. In the Pb-based metal-organic framework, in contrast,
no extended hydrogen bonding occurs, as the sulfonate groups coordinate to Pb2+,
without forming hydrogen bonds; the proton conductivity is much lower in this
material.
article_type: original
author:
- first_name: Ali
full_name: Javed, Ali
last_name: Javed
- first_name: Felix
full_name: Steinke, Felix
last_name: Steinke
- first_name: Stephan
full_name: Wöhlbrandt, Stephan
last_name: Wöhlbrandt
- first_name: Hana
full_name: Bunzen, Hana
last_name: Bunzen
- first_name: Norbert
full_name: Stock, Norbert
last_name: Stock
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
citation:
ama: Javed A, Steinke F, Wöhlbrandt S, Bunzen H, Stock N, Tiemann M. The role of
sulfonate groups and hydrogen bonding in the proton conductivity of two coordination
networks. Beilstein Journal of Nanotechnology. 2022;13:437-443. doi:10.3762/bjnano.13.36
apa: Javed, A., Steinke, F., Wöhlbrandt, S., Bunzen, H., Stock, N., & Tiemann,
M. (2022). The role of sulfonate groups and hydrogen bonding in the proton conductivity
of two coordination networks. Beilstein Journal of Nanotechnology, 13,
437–443. https://doi.org/10.3762/bjnano.13.36
bibtex: '@article{Javed_Steinke_Wöhlbrandt_Bunzen_Stock_Tiemann_2022, title={The
role of sulfonate groups and hydrogen bonding in the proton conductivity of two
coordination networks}, volume={13}, DOI={10.3762/bjnano.13.36},
journal={Beilstein Journal of Nanotechnology}, publisher={Beilstein Institut},
author={Javed, Ali and Steinke, Felix and Wöhlbrandt, Stephan and Bunzen, Hana
and Stock, Norbert and Tiemann, Michael}, year={2022}, pages={437–443} }'
chicago: 'Javed, Ali, Felix Steinke, Stephan Wöhlbrandt, Hana Bunzen, Norbert Stock,
and Michael Tiemann. “The Role of Sulfonate Groups and Hydrogen Bonding in the
Proton Conductivity of Two Coordination Networks.” Beilstein Journal of Nanotechnology
13 (2022): 437–43. https://doi.org/10.3762/bjnano.13.36.'
ieee: 'A. Javed, F. Steinke, S. Wöhlbrandt, H. Bunzen, N. Stock, and M. Tiemann,
“The role of sulfonate groups and hydrogen bonding in the proton conductivity
of two coordination networks,” Beilstein Journal of Nanotechnology, vol.
13, pp. 437–443, 2022, doi: 10.3762/bjnano.13.36.'
mla: Javed, Ali, et al. “The Role of Sulfonate Groups and Hydrogen Bonding in the
Proton Conductivity of Two Coordination Networks.” Beilstein Journal of Nanotechnology,
vol. 13, Beilstein Institut, 2022, pp. 437–43, doi:10.3762/bjnano.13.36.
short: A. Javed, F. Steinke, S. Wöhlbrandt, H. Bunzen, N. Stock, M. Tiemann, Beilstein
Journal of Nanotechnology 13 (2022) 437–443.
date_created: 2023-01-10T09:12:54Z
date_updated: 2023-03-03T08:37:14Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.3762/bjnano.13.36
intvolume: ' 13'
keyword:
- Electrical and Electronic Engineering
- General Physics and Astronomy
- General Materials Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.beilstein-journals.org/bjnano/content/pdf/2190-4286-13-36.pdf
oa: '1'
page: 437-443
publication: Beilstein Journal of Nanotechnology
publication_identifier:
issn:
- 2190-4286
publication_status: published
publisher: Beilstein Institut
quality_controlled: '1'
status: public
title: The role of sulfonate groups and hydrogen bonding in the proton conductivity
of two coordination networks
type: journal_article
user_id: '23547'
volume: 13
year: '2022'
...
---
_id: '33691'
abstract:
- lang: eng
text: Near ambient pressure XPS in nitrogen atmosphere was utilized to investigate
gas-solid interactions within porous SiO2 films ranging from 30 to 75 nm thickness.
The films were differentiated in terms of porosity and roughness. The XPS N1s
core levels of the N2 gas in presence of the SiO2 samples showed variations in
width, binding energy and line shape. The width correlated with the surface charge
induced in the dielectric films upon X-ray irradiation. The observed different
binding energies observed for the N1s peak can only partly be associated with
intrinsic work function differences between the samples, opening the possibility
that the effect of physisorption at room temperature could be detected by a shift
in the measured binding energy. However, the signals also show an increasing asymmetry
with rising surface charge. This might be associated with the formation of vertical
electrical gradients within the dielectric porous thin films, which complicates
the assignment of binding energy positions to specific surface-related effects.
With the support of Monte Carlo and first principles density functional theory
calculations, the observed shifts were discussed in terms of the possible formation
of transitory dipoles upon N2 physisorption within the porous SiO2 films.
article_number: '154525'
article_type: original
author:
- first_name: Teresa
full_name: de los Arcos, Teresa
last_name: de los Arcos
- first_name: Christian
full_name: Weinberger, Christian
id: '11848'
last_name: Weinberger
- first_name: Frederik
full_name: Zysk, Frederik
id: '14757'
last_name: Zysk
- first_name: Varun
full_name: Raj Damerla, Varun
last_name: Raj Damerla
- first_name: Sabrina
full_name: Kollmann, Sabrina
last_name: Kollmann
- first_name: Pascal
full_name: Vieth, Pascal
last_name: Vieth
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
- first_name: Thomas
full_name: Kühne, Thomas
id: '49079'
last_name: Kühne
- first_name: Guido
full_name: Grundmeier, Guido
id: '194'
last_name: Grundmeier
citation:
ama: de los Arcos T, Weinberger C, Zysk F, et al. Challenges in the interpretation
of gas core levels for the determination of gas-solid interactions within dielectric
porous films by ambient pressure XPS. Applied Surface Science. 2022;604.
doi:10.1016/j.apsusc.2022.154525
apa: de los Arcos, T., Weinberger, C., Zysk, F., Raj Damerla, V., Kollmann, S.,
Vieth, P., Tiemann, M., Kühne, T., & Grundmeier, G. (2022). Challenges in
the interpretation of gas core levels for the determination of gas-solid interactions
within dielectric porous films by ambient pressure XPS. Applied Surface Science,
604, Article 154525. https://doi.org/10.1016/j.apsusc.2022.154525
bibtex: '@article{de los Arcos_Weinberger_Zysk_Raj Damerla_Kollmann_Vieth_Tiemann_Kühne_Grundmeier_2022,
title={Challenges in the interpretation of gas core levels for the determination
of gas-solid interactions within dielectric porous films by ambient pressure XPS},
volume={604}, DOI={10.1016/j.apsusc.2022.154525},
number={154525}, journal={Applied Surface Science}, publisher={Elsevier BV}, author={de
los Arcos, Teresa and Weinberger, Christian and Zysk, Frederik and Raj Damerla,
Varun and Kollmann, Sabrina and Vieth, Pascal and Tiemann, Michael and Kühne,
Thomas and Grundmeier, Guido}, year={2022} }'
chicago: Arcos, Teresa de los, Christian Weinberger, Frederik Zysk, Varun Raj Damerla,
Sabrina Kollmann, Pascal Vieth, Michael Tiemann, Thomas Kühne, and Guido Grundmeier.
“Challenges in the Interpretation of Gas Core Levels for the Determination of
Gas-Solid Interactions within Dielectric Porous Films by Ambient Pressure XPS.”
Applied Surface Science 604 (2022). https://doi.org/10.1016/j.apsusc.2022.154525.
ieee: 'T. de los Arcos et al., “Challenges in the interpretation of gas core
levels for the determination of gas-solid interactions within dielectric porous
films by ambient pressure XPS,” Applied Surface Science, vol. 604, Art.
no. 154525, 2022, doi: 10.1016/j.apsusc.2022.154525.'
mla: de los Arcos, Teresa, et al. “Challenges in the Interpretation of Gas Core
Levels for the Determination of Gas-Solid Interactions within Dielectric Porous
Films by Ambient Pressure XPS.” Applied Surface Science, vol. 604, 154525,
Elsevier BV, 2022, doi:10.1016/j.apsusc.2022.154525.
short: T. de los Arcos, C. Weinberger, F. Zysk, V. Raj Damerla, S. Kollmann, P.
Vieth, M. Tiemann, T. Kühne, G. Grundmeier, Applied Surface Science 604 (2022).
date_created: 2022-10-11T08:22:25Z
date_updated: 2023-03-03T11:32:04Z
department:
- _id: '613'
- _id: '35'
- _id: '2'
- _id: '307'
- _id: '302'
- _id: '304'
doi: 10.1016/j.apsusc.2022.154525
intvolume: ' 604'
keyword:
- Surfaces
- Coatings and Films
- Condensed Matter Physics
- Surfaces and Interfaces
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
publication: Applied Surface Science
publication_identifier:
issn:
- 0169-4332
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Challenges in the interpretation of gas core levels for the determination of
gas-solid interactions within dielectric porous films by ambient pressure XPS
type: journal_article
user_id: '23547'
volume: 604
year: '2022'
...
---
_id: '33685'
abstract:
- lang: eng
text: In the spatial confinement of cylindrical mesopores with diameters of a few
nanometers, water molecules experience restrictions in hydrogen bonding. This
leads to a different behavior regarding the molecular orientational freedom (‘structure
of water') compared to the bulk liquid state. In addition to the pore size, the
behavior is also strongly affected by the strength of the pore wall-to-water interactions,
that is, the pore wall polarity. In this work, this is studied both experimentally
and theoretically. The surface polarity of mesoporous silica (SiO2) is modified
by functionalization with trimethylsilyl moieties, resulting in a change from
a hydrophilic (pristine) to a hydrophobic pore wall. The mesopore surface is characterized
by N2 and H2O sorption experiments. Those results are combined with IR spectroscopy
to investigate pore wall-to-water interactions leading to different structures
of water in the mesopore. Furthermore, the water's structure is studied theoretically
to gain deeper insight into the interfacial interactions. For this purpose, the
structure of water is analyzed by pairing densities, coordination, and angular
distributions with a novel adaptation of surface-specific sum-frequency generation
calculation for pore environments.
article_number: '2200245'
article_type: original
author:
- first_name: Christian
full_name: Weinberger, Christian
id: '11848'
last_name: Weinberger
- first_name: Frederik
full_name: Zysk, Frederik
id: '14757'
last_name: Zysk
- first_name: Marc
full_name: Hartmann, Marc
last_name: Hartmann
- first_name: Naveen
full_name: Kaliannan, Naveen
last_name: Kaliannan
- first_name: Waldemar
full_name: Keil, Waldemar
last_name: Keil
- first_name: Thomas
full_name: Kühne, Thomas
id: '49079'
last_name: Kühne
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
citation:
ama: Weinberger C, Zysk F, Hartmann M, et al. The Structure of Water in Silica Mesopores
– Influence of the Pore Wall Polarity. Advanced Materials Interfaces. 2022;9(20).
doi:10.1002/admi.202200245
apa: Weinberger, C., Zysk, F., Hartmann, M., Kaliannan, N., Keil, W., Kühne, T.,
& Tiemann, M. (2022). The Structure of Water in Silica Mesopores – Influence
of the Pore Wall Polarity. Advanced Materials Interfaces, 9(20),
Article 2200245. https://doi.org/10.1002/admi.202200245
bibtex: '@article{Weinberger_Zysk_Hartmann_Kaliannan_Keil_Kühne_Tiemann_2022, title={The
Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity},
volume={9}, DOI={10.1002/admi.202200245},
number={202200245}, journal={Advanced Materials Interfaces}, publisher={Wiley},
author={Weinberger, Christian and Zysk, Frederik and Hartmann, Marc and Kaliannan,
Naveen and Keil, Waldemar and Kühne, Thomas and Tiemann, Michael}, year={2022}
}'
chicago: Weinberger, Christian, Frederik Zysk, Marc Hartmann, Naveen Kaliannan,
Waldemar Keil, Thomas Kühne, and Michael Tiemann. “The Structure of Water in Silica
Mesopores – Influence of the Pore Wall Polarity.” Advanced Materials Interfaces
9, no. 20 (2022). https://doi.org/10.1002/admi.202200245.
ieee: 'C. Weinberger et al., “The Structure of Water in Silica Mesopores
– Influence of the Pore Wall Polarity,” Advanced Materials Interfaces,
vol. 9, no. 20, Art. no. 2200245, 2022, doi: 10.1002/admi.202200245.'
mla: Weinberger, Christian, et al. “The Structure of Water in Silica Mesopores –
Influence of the Pore Wall Polarity.” Advanced Materials Interfaces, vol.
9, no. 20, 2200245, Wiley, 2022, doi:10.1002/admi.202200245.
short: C. Weinberger, F. Zysk, M. Hartmann, N. Kaliannan, W. Keil, T. Kühne, M.
Tiemann, Advanced Materials Interfaces 9 (2022).
date_created: 2022-10-11T08:17:57Z
date_updated: 2023-03-03T11:33:24Z
department:
- _id: '613'
- _id: '35'
- _id: '2'
- _id: '307'
- _id: '304'
doi: 10.1002/admi.202200245
intvolume: ' 9'
issue: '20'
keyword:
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202200245
oa: '1'
publication: Advanced Materials Interfaces
publication_identifier:
issn:
- 2196-7350
- 2196-7350
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: The Structure of Water in Silica Mesopores – Influence of the Pore Wall Polarity
type: journal_article
user_id: '23547'
volume: 9
year: '2022'
...
---
_id: '29376'
abstract:
- lang: eng
text: The electrochemical properties of carbonaceous materials produced by hydrothermal
carbonization, referred to as hydrochar, can be substantially improved by post-carbonization
via pyrolysis. Although these materials have been widely studied for a variety
of applications, the mechanisms underlying the pyrolysis are yet poorly understood.
This study provides a comprehensive temperature-resolved characterization of the
chemical composition, morphology and crystallinity of sucrose-derived hydrochar
during pyrolysis. Thermogravimetric analysis, differential scanning calorimetry,
and elemental analysis have shown that the dry hydrochar loses about 41% of its
dry mass due to the exothermic disintegration of oxygen-containing groups until
the carbonization is completed at about 850 °C with a total carbon yield of 93%.
The carbonization and aromatization of the initially furanic and keto-aliphatic
structure were analyzed by 13C solid-state nuclear magnetic resonance spectroscopy,
X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy.
The transition from an amorphous to a nanocrystalline graphitic structure was
analyzed using X-ray diffraction and Raman spectroscopy. The pore formation mechanism
was examined by helium ion microscopy, transmission electron microscopy, and nitrogen
adsorption measurements. The results indicate the formation of oxygen-rich nanoclusters
up to 700 °C, which decompose up to 750 °C leaving behind equally sized pores,
resulting in a surface area of up to 480 m2/g.
article_number: '105404'
article_type: original
author:
- first_name: Martin
full_name: Wortmann, Martin
last_name: Wortmann
- first_name: Waldemar
full_name: Keil, Waldemar
last_name: Keil
- first_name: Bennet
full_name: Brockhagen, Bennet
last_name: Brockhagen
- first_name: Jan
full_name: Biedinger, Jan
last_name: Biedinger
- first_name: Michael
full_name: Westphal, Michael
last_name: Westphal
- first_name: Christian
full_name: Weinberger, Christian
id: '11848'
last_name: Weinberger
- first_name: Elise
full_name: Diestelhorst, Elise
last_name: Diestelhorst
- first_name: Wiebke
full_name: Hachmann, Wiebke
last_name: Hachmann
- first_name: Yanjing
full_name: Zhao, Yanjing
last_name: Zhao
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
- first_name: Günter
full_name: Reiss, Günter
last_name: Reiss
- first_name: Bruno
full_name: Hüsgen, Bruno
last_name: Hüsgen
- first_name: Claudia
full_name: Schmidt, Claudia
id: '466'
last_name: Schmidt
orcid: 0000-0003-3179-9997
- first_name: Klaus
full_name: Sattler, Klaus
last_name: Sattler
- first_name: Natalie
full_name: Frese, Natalie
last_name: Frese
citation:
ama: Wortmann M, Keil W, Brockhagen B, et al. Pyrolysis of sucrose-derived hydrochar.
Journal of Analytical and Applied Pyrolysis. 2022;161. doi:10.1016/j.jaap.2021.105404
apa: Wortmann, M., Keil, W., Brockhagen, B., Biedinger, J., Westphal, M., Weinberger,
C., Diestelhorst, E., Hachmann, W., Zhao, Y., Tiemann, M., Reiss, G., Hüsgen,
B., Schmidt, C., Sattler, K., & Frese, N. (2022). Pyrolysis of sucrose-derived
hydrochar. Journal of Analytical and Applied Pyrolysis, 161, Article
105404. https://doi.org/10.1016/j.jaap.2021.105404
bibtex: '@article{Wortmann_Keil_Brockhagen_Biedinger_Westphal_Weinberger_Diestelhorst_Hachmann_Zhao_Tiemann_et
al._2022, title={Pyrolysis of sucrose-derived hydrochar}, volume={161}, DOI={10.1016/j.jaap.2021.105404},
number={105404}, journal={Journal of Analytical and Applied Pyrolysis}, publisher={Elsevier
BV}, author={Wortmann, Martin and Keil, Waldemar and Brockhagen, Bennet and Biedinger,
Jan and Westphal, Michael and Weinberger, Christian and Diestelhorst, Elise and
Hachmann, Wiebke and Zhao, Yanjing and Tiemann, Michael and et al.}, year={2022}
}'
chicago: Wortmann, Martin, Waldemar Keil, Bennet Brockhagen, Jan Biedinger, Michael
Westphal, Christian Weinberger, Elise Diestelhorst, et al. “Pyrolysis of Sucrose-Derived
Hydrochar.” Journal of Analytical and Applied Pyrolysis 161 (2022). https://doi.org/10.1016/j.jaap.2021.105404.
ieee: 'M. Wortmann et al., “Pyrolysis of sucrose-derived hydrochar,” Journal
of Analytical and Applied Pyrolysis, vol. 161, Art. no. 105404, 2022, doi:
10.1016/j.jaap.2021.105404.'
mla: Wortmann, Martin, et al. “Pyrolysis of Sucrose-Derived Hydrochar.” Journal
of Analytical and Applied Pyrolysis, vol. 161, 105404, Elsevier BV, 2022,
doi:10.1016/j.jaap.2021.105404.
short: M. Wortmann, W. Keil, B. Brockhagen, J. Biedinger, M. Westphal, C. Weinberger,
E. Diestelhorst, W. Hachmann, Y. Zhao, M. Tiemann, G. Reiss, B. Hüsgen, C. Schmidt,
K. Sattler, N. Frese, Journal of Analytical and Applied Pyrolysis 161 (2022).
date_created: 2022-01-18T06:25:06Z
date_updated: 2023-03-08T08:15:24Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
- _id: '315'
doi: 10.1016/j.jaap.2021.105404
intvolume: ' 161'
keyword:
- Analytical Chemistry
- Fuel Technology
language:
- iso: eng
publication: Journal of Analytical and Applied Pyrolysis
publication_identifier:
issn:
- 0165-2370
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Pyrolysis of sucrose-derived hydrochar
type: journal_article
user_id: '23547'
volume: 161
year: '2022'
...
---
_id: '28254'
abstract:
- lang: eng
text: With the rapid advances of functional dielectric metasurfaces and their integration
on on-chip nanophotonic devices, the necessity of metasurfaces working in different
environments, especially in biological applications, arose. However, the metasurfaces’
performance is tied to the unit cell’s efficiency and ultimately the surrounding
environment it was designed for, thus reducing its applicability if exposed to
altering refractive index media. Here, we report a method to increase a metasurface’s
versatility by covering the high-index metasurface with a low index porous SiO2
film, protecting the metasurface from environmental changes while keeping the
working efficiency unchanged. We show, that a covered metasurface retains its
functionality even when exposed to fluidic environments.
article_type: original
author:
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Christian
full_name: Weinberger, Christian
id: '11848'
last_name: Weinberger
- first_name: Katja
full_name: Brormann, Katja
last_name: Brormann
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Geromel R, Weinberger C, Brormann K, Tiemann M, Zentgraf T. Porous SiO2 coated
dielectric metasurface with consistent performance independent of environmental
conditions. Optical Materials Express. 2022;12(1):13-21. doi:10.1364/ome.444264
apa: Geromel, R., Weinberger, C., Brormann, K., Tiemann, M., & Zentgraf, T.
(2022). Porous SiO2 coated dielectric metasurface with consistent performance
independent of environmental conditions. Optical Materials Express, 12(1),
13–21. https://doi.org/10.1364/ome.444264
bibtex: '@article{Geromel_Weinberger_Brormann_Tiemann_Zentgraf_2022, title={Porous
SiO2 coated dielectric metasurface with consistent performance independent of
environmental conditions}, volume={12}, DOI={10.1364/ome.444264},
number={1}, journal={Optical Materials Express}, publisher={Optica}, author={Geromel,
René and Weinberger, Christian and Brormann, Katja and Tiemann, Michael and Zentgraf,
Thomas}, year={2022}, pages={13–21} }'
chicago: 'Geromel, René, Christian Weinberger, Katja Brormann, Michael Tiemann,
and Thomas Zentgraf. “Porous SiO2 Coated Dielectric Metasurface with Consistent
Performance Independent of Environmental Conditions.” Optical Materials Express
12, no. 1 (2022): 13–21. https://doi.org/10.1364/ome.444264.'
ieee: 'R. Geromel, C. Weinberger, K. Brormann, M. Tiemann, and T. Zentgraf, “Porous
SiO2 coated dielectric metasurface with consistent performance independent of
environmental conditions,” Optical Materials Express, vol. 12, no. 1, pp.
13–21, 2022, doi: 10.1364/ome.444264.'
mla: Geromel, René, et al. “Porous SiO2 Coated Dielectric Metasurface with Consistent
Performance Independent of Environmental Conditions.” Optical Materials Express,
vol. 12, no. 1, Optica, 2022, pp. 13–21, doi:10.1364/ome.444264.
short: R. Geromel, C. Weinberger, K. Brormann, M. Tiemann, T. Zentgraf, Optical
Materials Express 12 (2022) 13–21.
date_created: 2021-12-02T18:47:42Z
date_updated: 2023-03-08T08:13:58Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '2'
- _id: '35'
- _id: '307'
doi: 10.1364/ome.444264
intvolume: ' 12'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-12-1-13&id=465602
oa: '1'
page: 13-21
publication: Optical Materials Express
publication_identifier:
issn:
- 2159-3930
publication_status: published
publisher: Optica
quality_controlled: '1'
status: public
title: Porous SiO2 coated dielectric metasurface with consistent performance independent
of environmental conditions
type: journal_article
user_id: '23547'
volume: 12
year: '2022'
...
---
_id: '44376'
author:
- first_name: Güldeniz
full_name: Tonbul, Güldeniz
id: '89054'
last_name: Tonbul
orcid: 0000-0002-0999-9995
- first_name: 'Julian '
full_name: 'Kappler, Julian '
last_name: Kappler
- first_name: 'Saravanakumar '
full_name: 'Murugan, Saravanakumar '
last_name: Murugan
- first_name: 'Roland '
full_name: 'Schoch, Roland '
last_name: Schoch
- first_name: 'Michal '
full_name: 'Nowakowski, Michal '
last_name: Nowakowski
- first_name: 'Pia '
full_name: 'Lange, Pia '
last_name: Lange
- first_name: Matthias
full_name: Bauer, Matthias
last_name: Bauer
- first_name: Michael R.
full_name: Buchmeiser, Michael R.
last_name: Buchmeiser
citation:
ama: 'Tonbul G, Kappler J, Murugan S, et al. Development of Battery System Based
on Na-S and Characterization Using X-ray Absorption Spectroscopy. In: ; 2022.'
apa: Tonbul, G., Kappler, J., Murugan, S., Schoch, R., Nowakowski, M., Lange, P.,
Bauer, M., & Buchmeiser, M. R. (2022). Development of Battery System Based
on Na-S and Characterization Using X-ray Absorption Spectroscopy. Electrochem2022
& 63rd Corrosion Science Symposium, Edinburgh.
bibtex: '@inproceedings{Tonbul_Kappler_Murugan_Schoch_Nowakowski_Lange_Bauer_Buchmeiser_2022,
place={Edinburgh}, title={Development of Battery System Based on Na-S and Characterization
Using X-ray Absorption Spectroscopy}, author={Tonbul, Güldeniz and Kappler, Julian and
Murugan, Saravanakumar and Schoch, Roland and Nowakowski, Michal and Lange,
Pia and Bauer, Matthias and Buchmeiser, Michael R.}, year={2022} }'
chicago: Tonbul, Güldeniz, Julian Kappler, Saravanakumar Murugan, Roland Schoch,
Michal Nowakowski, Pia Lange, Matthias Bauer, and Michael R. Buchmeiser. “Development
of Battery System Based on Na-S and Characterization Using X-Ray Absorption Spectroscopy.”
Edinburgh, 2022.
ieee: G. Tonbul et al., “Development of Battery System Based on Na-S and
Characterization Using X-ray Absorption Spectroscopy,” presented at the Electrochem2022
& 63rd Corrosion Science Symposium, Edinburgh, 2022.
mla: Tonbul, Güldeniz, et al. Development of Battery System Based on Na-S and
Characterization Using X-Ray Absorption Spectroscopy. 2022.
short: 'G. Tonbul, J. Kappler, S. Murugan, R. Schoch, M. Nowakowski, P. Lange, M.
Bauer, M.R. Buchmeiser, in: Edinburgh, 2022.'
conference:
end_date: 2022-09-06
location: Edinburgh
name: Electrochem2022 & 63rd Corrosion Science Symposium
start_date: 2022-09-04
date_created: 2023-05-03T08:25:33Z
date_updated: 2023-05-03T08:26:41Z
department:
- _id: '306'
language:
- iso: eng
place: Edinburgh
status: public
title: Development of Battery System Based on Na-S and Characterization Using X-ray
Absorption Spectroscopy
type: conference_abstract
user_id: '89054'
year: '2022'
...
---
_id: '40987'
abstract:
- lang: eng
text: Catalysts.
2022;12(6). doi:10.3390/catal12060675
apa: Schlicher, S., Prinz, N., Bürger, J., Omlor, A., Singer, C., Zobel, M., Schoch,
R., Lindner, J. K. N., Schünemann, V., Kureti, S., & Bauer, M. (2022). Quality
or Quantity? How Structural Parameters Affect Catalytic Activity of Iron Oxides
for CO Oxidation. Catalysts, 12(6), Article 675. https://doi.org/10.3390/catal12060675
bibtex: '@article{Schlicher_Prinz_Bürger_Omlor_Singer_Zobel_Schoch_Lindner_Schünemann_Kureti_et
al._2022, title={Quality or Quantity? How Structural Parameters Affect Catalytic
Activity of Iron Oxides for CO Oxidation}, volume={12}, DOI={10.3390/catal12060675},
number={6675}, journal={Catalysts}, publisher={MDPI AG}, author={Schlicher, Steffen
and Prinz, Nils and Bürger, Julius and Omlor, Andreas and Singer, Christian and
Zobel, Mirijam and Schoch, Roland and Lindner, Jörg K. N. and Schünemann, Volker
and Kureti, Sven and et al.}, year={2022} }'
chicago: Schlicher, Steffen, Nils Prinz, Julius Bürger, Andreas Omlor, Christian
Singer, Mirijam Zobel, Roland Schoch, et al. “Quality or Quantity? How Structural
Parameters Affect Catalytic Activity of Iron Oxides for CO Oxidation.” Catalysts
12, no. 6 (2022). https://doi.org/10.3390/catal12060675.
ieee: 'S. Schlicher et al., “Quality or Quantity? How Structural Parameters
Affect Catalytic Activity of Iron Oxides for CO Oxidation,” Catalysts,
vol. 12, no. 6, Art. no. 675, 2022, doi: 10.3390/catal12060675.'
mla: Schlicher, Steffen, et al. “Quality or Quantity? How Structural Parameters
Affect Catalytic Activity of Iron Oxides for CO Oxidation.” Catalysts,
vol. 12, no. 6, 675, MDPI AG, 2022, doi:10.3390/catal12060675.
short: S. Schlicher, N. Prinz, J. Bürger, A. Omlor, C. Singer, M. Zobel, R. Schoch,
J.K.N. Lindner, V. Schünemann, S. Kureti, M. Bauer, Catalysts 12 (2022).
date_created: 2023-01-30T16:24:41Z
date_updated: 2023-08-17T06:57:31Z
department:
- _id: '35'
- _id: '306'
- _id: '15'
doi: 10.3390/catal12060675
intvolume: ' 12'
issue: '6'
keyword:
- Physical and Theoretical Chemistry
- Catalysis
- General Environmental Science
- Key
language:
- iso: eng
publication: Catalysts
publication_identifier:
issn:
- 2073-4344
publication_status: published
publisher: MDPI AG
status: public
title: Quality or Quantity? How Structural Parameters Affect Catalytic Activity of
Iron Oxides for CO Oxidation
type: journal_article
user_id: '14931'
volume: 12
year: '2022'
...
---
_id: '29790'
abstract:
- lang: eng
text: The free exciton transition (near-band-edge emission, NBE) of ZnO at ≈388
nm can be strongly enhanced and even stimulated by an underlying photonic structure.
1D Photonic crystals, so-called distributed Bragg reflectors, are utilized to
suppress the deep-level emission of ZnO (DLE, ≈500–530 nm). The reflector stacks
are fabricated in a layer-by-layer procedure by wet-chemical synthesis. They consist
of low-ε porous SiO2 layers and high-ε TiO2 layers. Varying the thickness of the
SiO2 layers allows tuning the optical bandgap in a wide range between ≈420 and
800 nm. A ZnO layer is deposited on top of the reflector stacks by sol–gel synthesis.
The spontaneous photoluminescence (PL) emission of the ZnO film is modulated by
the photonic structure. When the optical bandgap of the reflector is in resonance
with the deep-level emission of ZnO (DLE, ≈500–530 nm), then this defect-related
emission mode is suppressed. Strong NBE emission is observed even when the ZnO
layer does not show any NBE emission (due to low crystallinity) in the absence
of the photonic structure. With this cost-efficient synthesis method, emitters
for, e.g., luminescent gas sensors can be fabricated.
article_number: '2102357'
article_type: original
author:
- first_name: Linda
full_name: Kothe, Linda
last_name: Kothe
- first_name: Maximilian
full_name: Albert, Maximilian
last_name: Albert
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Thorsten
full_name: Wagner, Thorsten
last_name: Wagner
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
citation:
ama: Kothe L, Albert M, Meier C, Wagner T, Tiemann M. Stimulation and Enhancement
of Near‐Band‐Edge Emission in Zinc Oxide by Distributed Bragg Reflectors. Advanced
Materials Interfaces. 2022;9. doi:10.1002/admi.202102357
apa: Kothe, L., Albert, M., Meier, C., Wagner, T., & Tiemann, M. (2022). Stimulation
and Enhancement of Near‐Band‐Edge Emission in Zinc Oxide by Distributed Bragg
Reflectors. Advanced Materials Interfaces, 9, Article 2102357. https://doi.org/10.1002/admi.202102357
bibtex: '@article{Kothe_Albert_Meier_Wagner_Tiemann_2022, title={Stimulation and
Enhancement of Near‐Band‐Edge Emission in Zinc Oxide by Distributed Bragg Reflectors},
volume={9}, DOI={10.1002/admi.202102357},
number={2102357}, journal={Advanced Materials Interfaces}, publisher={Wiley},
author={Kothe, Linda and Albert, Maximilian and Meier, Cedrik and Wagner, Thorsten
and Tiemann, Michael}, year={2022} }'
chicago: Kothe, Linda, Maximilian Albert, Cedrik Meier, Thorsten Wagner, and Michael
Tiemann. “Stimulation and Enhancement of Near‐Band‐Edge Emission in Zinc Oxide
by Distributed Bragg Reflectors.” Advanced Materials Interfaces 9 (2022).
https://doi.org/10.1002/admi.202102357.
ieee: 'L. Kothe, M. Albert, C. Meier, T. Wagner, and M. Tiemann, “Stimulation and
Enhancement of Near‐Band‐Edge Emission in Zinc Oxide by Distributed Bragg Reflectors,”
Advanced Materials Interfaces, vol. 9, Art. no. 2102357, 2022, doi: 10.1002/admi.202102357.'
mla: Kothe, Linda, et al. “Stimulation and Enhancement of Near‐Band‐Edge Emission
in Zinc Oxide by Distributed Bragg Reflectors.” Advanced Materials Interfaces,
vol. 9, 2102357, Wiley, 2022, doi:10.1002/admi.202102357.
short: L. Kothe, M. Albert, C. Meier, T. Wagner, M. Tiemann, Advanced Materials
Interfaces 9 (2022).
date_created: 2022-02-08T15:24:58Z
date_updated: 2025-05-27T07:42:58Z
department:
- _id: '15'
- _id: '35'
- _id: '2'
- _id: '307'
- _id: '230'
doi: 10.1002/admi.202102357
intvolume: ' 9'
keyword:
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202102357
oa: '1'
publication: Advanced Materials Interfaces
publication_identifier:
issn:
- 2196-7350
- 2196-7350
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Stimulation and Enhancement of Near‐Band‐Edge Emission in Zinc Oxide by Distributed
Bragg Reflectors
type: journal_article
user_id: '23547'
volume: 9
year: '2022'
...
---
_id: '41001'
abstract:
- lang: eng
text: For entropic reasons, the synthesis of macrocycles via olefin ring-closing
metathesis (RCM) is impeded by competing acyclic diene metathesis (ADMET) oligomerization.
With cationic molybdenum imido alkylidene N-heterocyclic carbene (NHC) complexes
confined in tailored ordered mesoporous silica, RCM can be run with macrocyclization
selectivities up to 98% and high substrate concentrations up to 0.1 M. Molecular
dynamics simulations show that the high conversions are a direct result of the
proximity between the surface-bound catalyst, proven by extended X-ray absorption
spectroscopy, and the surface-located substrates. Back-diffusion of the macrocycles
decreases with decreasing pore diameter of the silica and is responsible for the
high macrocyclization efficiency. Also, Z-selectivity increases with decreasing
pore diameter and increasing Tolman electronic parameter of the NHC. Running reactions
at different concentrations allows for identifying the optimum substrate concentration
for each material and substrate combination.
article_type: original
author:
- first_name: Felix
full_name: Ziegler, Felix
last_name: Ziegler
- first_name: Hamzeh
full_name: Kraus, Hamzeh
last_name: Kraus
- first_name: Mathis J.
full_name: Benedikter, Mathis J.
last_name: Benedikter
- first_name: Dongren
full_name: Wang, Dongren
last_name: Wang
- first_name: Johanna R.
full_name: Bruckner, Johanna R.
last_name: Bruckner
- first_name: Michał
full_name: Nowakowski, Michał
id: '78878'
last_name: Nowakowski
orcid: 0000-0002-3734-7011
- first_name: Kilian
full_name: Weißer, Kilian
last_name: Weißer
- first_name: Helena
full_name: Solodenko, Helena
last_name: Solodenko
- first_name: Guido
full_name: Schmitz, Guido
last_name: Schmitz
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Niels
full_name: Hansen, Niels
last_name: Hansen
- first_name: Michael R.
full_name: Buchmeiser, Michael R.
last_name: Buchmeiser
citation:
ama: Ziegler F, Kraus H, Benedikter MJ, et al. Confinement Effects for Efficient
Macrocyclization Reactions with Supported Cationic Molybdenum Imido Alkylidene
N-Heterocyclic Carbene Complexes. ACS Catalysis. 2021;11(18):11570-11578.
doi:10.1021/acscatal.1c03057
apa: Ziegler, F., Kraus, H., Benedikter, M. J., Wang, D., Bruckner, J. R., Nowakowski,
M., Weißer, K., Solodenko, H., Schmitz, G., Bauer, M., Hansen, N., & Buchmeiser,
M. R. (2021). Confinement Effects for Efficient Macrocyclization Reactions with
Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes.
ACS Catalysis, 11(18), 11570–11578. https://doi.org/10.1021/acscatal.1c03057
bibtex: '@article{Ziegler_Kraus_Benedikter_Wang_Bruckner_Nowakowski_Weißer_Solodenko_Schmitz_Bauer_et
al._2021, title={Confinement Effects for Efficient Macrocyclization Reactions
with Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene
Complexes}, volume={11}, DOI={10.1021/acscatal.1c03057},
number={18}, journal={ACS Catalysis}, publisher={American Chemical Society (ACS)},
author={Ziegler, Felix and Kraus, Hamzeh and Benedikter, Mathis J. and Wang, Dongren
and Bruckner, Johanna R. and Nowakowski, Michał and Weißer, Kilian and Solodenko,
Helena and Schmitz, Guido and Bauer, Matthias and et al.}, year={2021}, pages={11570–11578}
}'
chicago: 'Ziegler, Felix, Hamzeh Kraus, Mathis J. Benedikter, Dongren Wang, Johanna
R. Bruckner, Michał Nowakowski, Kilian Weißer, et al. “Confinement Effects for
Efficient Macrocyclization Reactions with Supported Cationic Molybdenum Imido
Alkylidene N-Heterocyclic Carbene Complexes.” ACS Catalysis 11,
no. 18 (2021): 11570–78. https://doi.org/10.1021/acscatal.1c03057.'
ieee: 'F. Ziegler et al., “Confinement Effects for Efficient Macrocyclization
Reactions with Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic
Carbene Complexes,” ACS Catalysis, vol. 11, no. 18, pp. 11570–11578, 2021,
doi: 10.1021/acscatal.1c03057.'
mla: Ziegler, Felix, et al. “Confinement Effects for Efficient Macrocyclization
Reactions with Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic
Carbene Complexes.” ACS Catalysis, vol. 11, no. 18, American Chemical Society
(ACS), 2021, pp. 11570–78, doi:10.1021/acscatal.1c03057.
short: F. Ziegler, H. Kraus, M.J. Benedikter, D. Wang, J.R. Bruckner, M. Nowakowski,
K. Weißer, H. Solodenko, G. Schmitz, M. Bauer, N. Hansen, M.R. Buchmeiser, ACS
Catalysis 11 (2021) 11570–11578.
date_created: 2023-01-30T16:49:07Z
date_updated: 2024-05-07T11:44:19Z
department:
- _id: '35'
- _id: '306'
doi: 10.1021/acscatal.1c03057
intvolume: ' 11'
issue: '18'
keyword:
- Catalysis
- General Chemistry
language:
- iso: eng
page: 11570-11578
publication: ACS Catalysis
publication_identifier:
issn:
- 2155-5435
- 2155-5435
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Confinement Effects for Efficient Macrocyclization Reactions with Supported
Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes
type: journal_article
user_id: '48467'
volume: 11
year: '2021'
...
---
_id: '40999'
abstract:
- lang: eng
text: Rh(I) NHC and Rh(III) Cp* NHC complexes (Cp*=pentamethylcyclopentadienyl,
NHC=N-heterocyclic carbene=pyrid-2-ylimidazol-2-ylidene (Py−Im), thiophen-2-ylimidazol-2-ylidene)
are presented. Selected catalysts were selectively immobilized inside the mesopores
of SBA-15 with average pore diameters of 5.0 and 6.2 nm. Together with their homogenous
progenitors, the immobilized catalysts were used in the hydrosilylation of terminal
alkynes. For aromatic alkynes, both the neutral and cationic Rh(I) complexes showed
excellent reactivity with exclusive formation of the β(E)-isomer. For aliphatic
alkynes, however, selectivity of the Rh(I) complexes was low. By contrast, the
neutral and cationic Rh(III) Cp* NHC complexes proved to be highly regio- and
stereoselective catalysts, allowing for the formation of the thermodynamically
less stable β-(Z)-vinylsilane isomers at room temperature. Notably, the SBA-15
immobilized Rh(I) catalysts, in which the pore walls provide an additional confinement,
showed excellent β-(Z)-selectivity in the hydrosilylation of aliphatic alkynes,
too. Also, in the case of 4-aminophenylacetylene, selective formation of the β(Z)-isomer
was observed with a neutral SBA-15 supported Rh(III) Cp* NHC complex but not with
its homogenous counterpart. These are the first examples of high β(Z)-selectivity
in the hydrosilylation of alkynes by confinement generated upon immobilization
inside mesoporous silica.
article_type: original
author:
- first_name: Pradeep K. R.
full_name: Panyam, Pradeep K. R.
last_name: Panyam
- first_name: Boshra
full_name: Atwi, Boshra
last_name: Atwi
- first_name: Felix
full_name: Ziegler, Felix
last_name: Ziegler
- first_name: Wolfgang
full_name: Frey, Wolfgang
last_name: Frey
- first_name: Michał
full_name: Nowakowski, Michał
id: '78878'
last_name: Nowakowski
orcid: 0000-0002-3734-7011
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Michael R.
full_name: Buchmeiser, Michael R.
last_name: Buchmeiser
citation:
ama: 'Panyam PKR, Atwi B, Ziegler F, et al. Rh(I)/(III)‐N‐Heterocyclic Carbene Complexes:
Effect of Steric Confinement Upon Immobilization on Regio‐ and Stereoselectivity
in the Hydrosilylation of Alkynes. Chemistry – A European Journal. 2021;27(68):17220-17229.
doi:10.1002/chem.202103099'
apa: 'Panyam, P. K. R., Atwi, B., Ziegler, F., Frey, W., Nowakowski, M., Bauer,
M., & Buchmeiser, M. R. (2021). Rh(I)/(III)‐N‐Heterocyclic Carbene Complexes:
Effect of Steric Confinement Upon Immobilization on Regio‐ and Stereoselectivity
in the Hydrosilylation of Alkynes. Chemistry – A European Journal, 27(68),
17220–17229. https://doi.org/10.1002/chem.202103099'
bibtex: '@article{Panyam_Atwi_Ziegler_Frey_Nowakowski_Bauer_Buchmeiser_2021, title={Rh(I)/(III)‐N‐Heterocyclic
Carbene Complexes: Effect of Steric Confinement Upon Immobilization on Regio‐
and Stereoselectivity in the Hydrosilylation of Alkynes}, volume={27}, DOI={10.1002/chem.202103099}, number={68},
journal={Chemistry – A European Journal}, publisher={Wiley}, author={Panyam, Pradeep
K. R. and Atwi, Boshra and Ziegler, Felix and Frey, Wolfgang and Nowakowski, Michał
and Bauer, Matthias and Buchmeiser, Michael R.}, year={2021}, pages={17220–17229}
}'
chicago: 'Panyam, Pradeep K. R., Boshra Atwi, Felix Ziegler, Wolfgang Frey, Michał
Nowakowski, Matthias Bauer, and Michael R. Buchmeiser. “Rh(I)/(III)‐N‐Heterocyclic
Carbene Complexes: Effect of Steric Confinement Upon Immobilization on Regio‐
and Stereoselectivity in the Hydrosilylation of Alkynes.” Chemistry – A European
Journal 27, no. 68 (2021): 17220–29. https://doi.org/10.1002/chem.202103099.'
ieee: 'P. K. R. Panyam et al., “Rh(I)/(III)‐N‐Heterocyclic Carbene Complexes:
Effect of Steric Confinement Upon Immobilization on Regio‐ and Stereoselectivity
in the Hydrosilylation of Alkynes,” Chemistry – A European Journal, vol.
27, no. 68, pp. 17220–17229, 2021, doi: 10.1002/chem.202103099.'
mla: 'Panyam, Pradeep K. R., et al. “Rh(I)/(III)‐N‐Heterocyclic Carbene Complexes:
Effect of Steric Confinement Upon Immobilization on Regio‐ and Stereoselectivity
in the Hydrosilylation of Alkynes.” Chemistry – A European Journal, vol.
27, no. 68, Wiley, 2021, pp. 17220–29, doi:10.1002/chem.202103099.'
short: P.K.R. Panyam, B. Atwi, F. Ziegler, W. Frey, M. Nowakowski, M. Bauer, M.R.
Buchmeiser, Chemistry – A European Journal 27 (2021) 17220–17229.
date_created: 2023-01-30T16:48:41Z
date_updated: 2024-05-07T11:43:40Z
department:
- _id: '35'
- _id: '306'
doi: 10.1002/chem.202103099
intvolume: ' 27'
issue: '68'
keyword:
- General Chemistry
- Catalysis
- Organic Chemistry
language:
- iso: eng
page: 17220-17229
publication: Chemistry – A European Journal
publication_identifier:
issn:
- 0947-6539
- 1521-3765
publication_status: published
publisher: Wiley
status: public
title: 'Rh(I)/(III)‐N‐Heterocyclic Carbene Complexes: Effect of Steric Confinement
Upon Immobilization on Regio‐ and Stereoselectivity in the Hydrosilylation of Alkynes'
type: journal_article
user_id: '48467'
volume: 27
year: '2021'
...
---
_id: '41009'
abstract:
- lang: eng
text: Platinum hydride species catalyze a number of interesting organic reactions.
However, their reactions typically involve the use of high loadings of noble metal
and are difficult to recycle, making them somewhat unsustainable. We have synthesized
surface-immobilized Pt–H species via oxidative addition of surface OH groups to
Pt(PtBu3)2 (1), a rarely used immobilization technique in surface organometallic
chemistry. The hydride species thus made were characterized by infrared, magic-angle
spinning nuclear magnetic resonance, and X-ray absorption spectroscopies and catalyzed
both olefin isomerization and cycloisomerization of a 1,6 enyne (5) with a high
selectivity and low Pt loading.
article_type: original
author:
- first_name: Sarah
full_name: Maier, Sarah
last_name: Maier
- first_name: Steve P.
full_name: Cronin, Steve P.
last_name: Cronin
- first_name: Manh-Anh
full_name: Vu Dinh, Manh-Anh
last_name: Vu Dinh
- first_name: Zheng
full_name: Li, Zheng
last_name: Li
- first_name: Michael
full_name: Dyballa, Michael
last_name: Dyballa
- first_name: Michał
full_name: Nowakowski, Michał
id: '78878'
last_name: Nowakowski
orcid: 0000-0002-3734-7011
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Deven P.
full_name: Estes, Deven P.
last_name: Estes
citation:
ama: Maier S, Cronin SP, Vu Dinh M-A, et al. Immobilized Platinum Hydride Species
as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations. Organometallics.
2021;40(11):1751-1757. doi:10.1021/acs.organomet.1c00216
apa: Maier, S., Cronin, S. P., Vu Dinh, M.-A., Li, Z., Dyballa, M., Nowakowski,
M., Bauer, M., & Estes, D. P. (2021). Immobilized Platinum Hydride Species
as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations. Organometallics,
40(11), 1751–1757. https://doi.org/10.1021/acs.organomet.1c00216
bibtex: '@article{Maier_Cronin_Vu Dinh_Li_Dyballa_Nowakowski_Bauer_Estes_2021, title={Immobilized
Platinum Hydride Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations},
volume={40}, DOI={10.1021/acs.organomet.1c00216},
number={11}, journal={Organometallics}, publisher={American Chemical Society (ACS)},
author={Maier, Sarah and Cronin, Steve P. and Vu Dinh, Manh-Anh and Li, Zheng
and Dyballa, Michael and Nowakowski, Michał and Bauer, Matthias and Estes, Deven
P.}, year={2021}, pages={1751–1757} }'
chicago: 'Maier, Sarah, Steve P. Cronin, Manh-Anh Vu Dinh, Zheng Li, Michael Dyballa,
Michał Nowakowski, Matthias Bauer, and Deven P. Estes. “Immobilized Platinum Hydride
Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations.”
Organometallics 40, no. 11 (2021): 1751–57. https://doi.org/10.1021/acs.organomet.1c00216.'
ieee: 'S. Maier et al., “Immobilized Platinum Hydride Species as Catalysts
for Olefin Isomerizations and Enyne Cycloisomerizations,” Organometallics,
vol. 40, no. 11, pp. 1751–1757, 2021, doi: 10.1021/acs.organomet.1c00216.'
mla: Maier, Sarah, et al. “Immobilized Platinum Hydride Species as Catalysts for
Olefin Isomerizations and Enyne Cycloisomerizations.” Organometallics,
vol. 40, no. 11, American Chemical Society (ACS), 2021, pp. 1751–57, doi:10.1021/acs.organomet.1c00216.
short: S. Maier, S.P. Cronin, M.-A. Vu Dinh, Z. Li, M. Dyballa, M. Nowakowski, M.
Bauer, D.P. Estes, Organometallics 40 (2021) 1751–1757.
date_created: 2023-01-30T17:00:10Z
date_updated: 2024-05-07T11:43:17Z
department:
- _id: '35'
- _id: '306'
doi: 10.1021/acs.organomet.1c00216
intvolume: ' 40'
issue: '11'
keyword:
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
language:
- iso: eng
page: 1751-1757
publication: Organometallics
publication_identifier:
issn:
- 0276-7333
- 1520-6041
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Immobilized Platinum Hydride Species as Catalysts for Olefin Isomerizations
and Enyne Cycloisomerizations
type: journal_article
user_id: '48467'
volume: 40
year: '2021'
...
---
_id: '30216'
author:
- first_name: Marina
full_name: Huber-Gedert, Marina
id: '38352'
last_name: Huber-Gedert
- first_name: Michał
full_name: Nowakowski, Michał
id: '78878'
last_name: Nowakowski
orcid: 0000-0002-3734-7011
- first_name: Ahmet
full_name: Kertmen, Ahmet
last_name: Kertmen
- first_name: Lukas
full_name: Burkhardt, Lukas
id: '54038'
last_name: Burkhardt
orcid: 0000-0003-0747-9811
- first_name: Natalia
full_name: Lindner, Natalia
last_name: Lindner
- first_name: Roland
full_name: Schoch, Roland
last_name: Schoch
- first_name: Regine
full_name: Herbst‐Irmer, Regine
last_name: Herbst‐Irmer
- first_name: Adam
full_name: Neuba, Adam
last_name: Neuba
- first_name: Lennart
full_name: Schmitz, Lennart
last_name: Schmitz
- first_name: Tae‐Kyu
full_name: Choi, Tae‐Kyu
last_name: Choi
- first_name: Jacek
full_name: Kubicki, Jacek
last_name: Kubicki
- first_name: Wojciech
full_name: Gawelda, Wojciech
last_name: Gawelda
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Huber-Gedert M, Nowakowski M, Kertmen A, et al. Fundamental Characterization,
Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad. Chemistry
– A European Journal. 2021;27(38):9905-9918. doi:10.1002/chem.202100766
apa: Huber-Gedert, M., Nowakowski, M., Kertmen, A., Burkhardt, L., Lindner, N.,
Schoch, R., Herbst‐Irmer, R., Neuba, A., Schmitz, L., Choi, T., Kubicki, J., Gawelda,
W., & Bauer, M. (2021). Fundamental Characterization, Photophysics and Photocatalysis
of a Base Metal Iron(II)‐Cobalt(III) Dyad. Chemistry – A European Journal,
27(38), 9905–9918. https://doi.org/10.1002/chem.202100766
bibtex: '@article{Huber-Gedert_Nowakowski_Kertmen_Burkhardt_Lindner_Schoch_Herbst‐Irmer_Neuba_Schmitz_Choi_et
al._2021, title={Fundamental Characterization, Photophysics and Photocatalysis
of a Base Metal Iron(II)‐Cobalt(III) Dyad}, volume={27}, DOI={10.1002/chem.202100766},
number={38}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Huber-Gedert,
Marina and Nowakowski, Michał and Kertmen, Ahmet and Burkhardt, Lukas and Lindner,
Natalia and Schoch, Roland and Herbst‐Irmer, Regine and Neuba, Adam and Schmitz,
Lennart and Choi, Tae‐Kyu and et al.}, year={2021}, pages={9905–9918} }'
chicago: 'Huber-Gedert, Marina, Michał Nowakowski, Ahmet Kertmen, Lukas Burkhardt,
Natalia Lindner, Roland Schoch, Regine Herbst‐Irmer, et al. “Fundamental Characterization,
Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad.” Chemistry
– A European Journal 27, no. 38 (2021): 9905–18. https://doi.org/10.1002/chem.202100766.'
ieee: 'M. Huber-Gedert et al., “Fundamental Characterization, Photophysics
and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad,” Chemistry –
A European Journal, vol. 27, no. 38, pp. 9905–9918, 2021, doi: 10.1002/chem.202100766.'
mla: Huber-Gedert, Marina, et al. “Fundamental Characterization, Photophysics and
Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad.” Chemistry – A European
Journal, vol. 27, no. 38, Wiley, 2021, pp. 9905–18, doi:10.1002/chem.202100766.
short: M. Huber-Gedert, M. Nowakowski, A. Kertmen, L. Burkhardt, N. Lindner, R.
Schoch, R. Herbst‐Irmer, A. Neuba, L. Schmitz, T. Choi, J. Kubicki, W. Gawelda,
M. Bauer, Chemistry – A European Journal 27 (2021) 9905–9918.
date_created: 2022-03-09T08:20:58Z
date_updated: 2024-05-07T11:44:08Z
department:
- _id: '306'
doi: 10.1002/chem.202100766
intvolume: ' 27'
issue: '38'
keyword:
- Photocatalytic Hydrogen Production
- Catalysis
- Inorganic Chemistry
language:
- iso: eng
page: 9905-9918
publication: Chemistry – A European Journal
publication_identifier:
issn:
- 0947-6539
- 1521-3765
publication_status: published
publisher: Wiley
status: public
title: Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal
Iron(II)‐Cobalt(III) Dyad
type: journal_article
user_id: '48467'
volume: 27
year: '2021'
...
---
_id: '41006'
author:
- first_name: Steffen
full_name: Schlicher, Steffen
last_name: Schlicher
citation:
ama: 'Schlicher S. Iron Oxide Catalysts for CO Oxidation : From Basic Structure-Activity-Correlation
to an Advanced Preparation Strategy for Highly Active Catalysts.; 2021. doi:10.17619/UNIPB/1-1089'
apa: 'Schlicher, S. (2021). Iron oxide catalysts for CO oxidation : from basic
structure-activity-correlation to an advanced preparation strategy for highly
active catalysts. https://doi.org/10.17619/UNIPB/1-1089'
bibtex: '@book{Schlicher_2021, title={Iron oxide catalysts for CO oxidation : from
basic structure-activity-correlation to an advanced preparation strategy for highly
active catalysts}, DOI={10.17619/UNIPB/1-1089},
author={Schlicher, Steffen}, year={2021} }'
chicago: 'Schlicher, Steffen. Iron Oxide Catalysts for CO Oxidation : From Basic
Structure-Activity-Correlation to an Advanced Preparation Strategy for Highly
Active Catalysts, 2021. https://doi.org/10.17619/UNIPB/1-1089.'
ieee: 'S. Schlicher, Iron oxide catalysts for CO oxidation : from basic structure-activity-correlation
to an advanced preparation strategy for highly active catalysts. 2021.'
mla: 'Schlicher, Steffen. Iron Oxide Catalysts for CO Oxidation : From Basic
Structure-Activity-Correlation to an Advanced Preparation Strategy for Highly
Active Catalysts. 2021, doi:10.17619/UNIPB/1-1089.'
short: 'S. Schlicher, Iron Oxide Catalysts for CO Oxidation : From Basic Structure-Activity-Correlation
to an Advanced Preparation Strategy for Highly Active Catalysts, 2021.'
date_created: 2023-01-30T16:59:34Z
date_updated: 2023-01-31T08:19:09Z
department:
- _id: '35'
- _id: '306'
doi: 10.17619/UNIPB/1-1089
language:
- iso: eng
status: public
supervisor:
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
title: 'Iron oxide catalysts for CO oxidation : from basic structure-activity-correlation
to an advanced preparation strategy for highly active catalysts'
type: dissertation
user_id: '27611'
year: '2021'
...
---
_id: '41002'
abstract:
- lang: eng
text: Homogeneous catalysts immobilized on metal oxides often have different catalytic
properties than in homogeneous solution. This can be either activating or deactivating
and is often attributed to interactions of catalyst species with the metal oxide
surface. However, few studies have ever demonstrated the effect that close associations
of active sites with surfaces have on the catalytic activity. In this paper, we
immobilize H2Ru(PPh3)2(Ph2P)2N–C3H6–Si(OEt)3 (3) on SiO2, Al2O3, and ZnO and interrogate
the relationship to the surface using IR, MAS NMR, 1H–31P HETCOR, and XAS spectroscopies.
We found that while there are close contacts between the P atoms of the complex
and all three metal oxide surfaces, the Ru–H bond only reacts with oxygen bridges
on SiO2 and Al2O3, forming new Ru–O bonds. In contrast, complex 3 stays intact
on ZnO. Comparison of the catalytic activities of our immobilized species for
CO2 hydrogenation to ethyl formate showed that Lewis acidic metal oxides activate,
rather than deactivate, complex 3 in the order Al2O3 > ZnO > SiO2. The Lewis acidic
sites on the metal oxide surfaces most likely increase the productivity by increasing
the rate of esterification of formate intermediates.
article_type: original
author:
- first_name: Hoang-Huy
full_name: Nguyen, Hoang-Huy
last_name: Nguyen
- first_name: Zheng
full_name: Li, Zheng
last_name: Li
- first_name: Toni
full_name: Enenkel, Toni
last_name: Enenkel
- first_name: Joachim
full_name: Hildebrand, Joachim
last_name: Hildebrand
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Michael
full_name: Dyballa, Michael
last_name: Dyballa
- first_name: Deven P.
full_name: Estes, Deven P.
last_name: Estes
citation:
ama: 'Nguyen H-H, Li Z, Enenkel T, et al. Probing the Interactions of Immobilized
Ruthenium Dihydride Complexes with Metal Oxide Surfaces by MAS NMR: Effects on
CO2 Hydrogenation. The Journal of Physical Chemistry C. 2021;125(27):14627-14635.
doi:10.1021/acs.jpcc.1c02074'
apa: 'Nguyen, H.-H., Li, Z., Enenkel, T., Hildebrand, J., Bauer, M., Dyballa, M.,
& Estes, D. P. (2021). Probing the Interactions of Immobilized Ruthenium Dihydride
Complexes with Metal Oxide Surfaces by MAS NMR: Effects on CO2 Hydrogenation.
The Journal of Physical Chemistry C, 125(27), 14627–14635. https://doi.org/10.1021/acs.jpcc.1c02074'
bibtex: '@article{Nguyen_Li_Enenkel_Hildebrand_Bauer_Dyballa_Estes_2021, title={Probing
the Interactions of Immobilized Ruthenium Dihydride Complexes with Metal Oxide
Surfaces by MAS NMR: Effects on CO2 Hydrogenation}, volume={125}, DOI={10.1021/acs.jpcc.1c02074},
number={27}, journal={The Journal of Physical Chemistry C}, publisher={American
Chemical Society (ACS)}, author={Nguyen, Hoang-Huy and Li, Zheng and Enenkel,
Toni and Hildebrand, Joachim and Bauer, Matthias and Dyballa, Michael and Estes,
Deven P.}, year={2021}, pages={14627–14635} }'
chicago: 'Nguyen, Hoang-Huy, Zheng Li, Toni Enenkel, Joachim Hildebrand, Matthias
Bauer, Michael Dyballa, and Deven P. Estes. “Probing the Interactions of Immobilized
Ruthenium Dihydride Complexes with Metal Oxide Surfaces by MAS NMR: Effects on
CO2 Hydrogenation.” The Journal of Physical Chemistry C 125,
no. 27 (2021): 14627–35. https://doi.org/10.1021/acs.jpcc.1c02074.'
ieee: 'H.-H. Nguyen et al., “Probing the Interactions of Immobilized Ruthenium
Dihydride Complexes with Metal Oxide Surfaces by MAS NMR: Effects on CO2
Hydrogenation,” The Journal of Physical Chemistry C, vol. 125, no. 27,
pp. 14627–14635, 2021, doi: 10.1021/acs.jpcc.1c02074.'
mla: 'Nguyen, Hoang-Huy, et al. “Probing the Interactions of Immobilized Ruthenium
Dihydride Complexes with Metal Oxide Surfaces by MAS NMR: Effects on CO2
Hydrogenation.” The Journal of Physical Chemistry C, vol. 125, no. 27,
American Chemical Society (ACS), 2021, pp. 14627–35, doi:10.1021/acs.jpcc.1c02074.'
short: H.-H. Nguyen, Z. Li, T. Enenkel, J. Hildebrand, M. Bauer, M. Dyballa, D.P.
Estes, The Journal of Physical Chemistry C 125 (2021) 14627–14635.
date_created: 2023-01-30T16:49:18Z
date_updated: 2023-01-31T08:06:00Z
department:
- _id: '35'
- _id: '306'
doi: 10.1021/acs.jpcc.1c02074
intvolume: ' 125'
issue: '27'
keyword:
- Surfaces
- Coatings and Films
- Physical and Theoretical Chemistry
- General Energy
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 14627-14635
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: 'Probing the Interactions of Immobilized Ruthenium Dihydride Complexes with
Metal Oxide Surfaces by MAS NMR: Effects on CO2 Hydrogenation'
type: journal_article
user_id: '48467'
volume: 125
year: '2021'
...
---
_id: '40998'
abstract:
- lang: eng
text: Covalent organic frameworks (COFs) offer vast structural and chemical diversity
enabling a wide and growing range of applications. While COFs are well-established
as heterogeneous catalysts, so far, their high and ordered porosity has scarcely
been utilized to its full potential when it comes to spatially confined reactions
in COF pores to alter the outcome of reactions. Here, we present a highly porous
and crystalline, large-pore COF as catalytic support in α,ω-diene ring-closing
metathesis reactions, leading to increased macrocyclization selectivity. COF pore-wall
modification by immobilization of a Grubbs-Hoveyda-type catalyst via a mild silylation
reaction provides a molecularly precise heterogeneous olefin metathesis catalyst.
An increased macro(mono)cyclization (MMC) selectivity over oligomerization (O)
for the heterogeneous COF-catalyst (MMC:O=1.35) of up to 51 % compared to the
homogeneous catalyst (MMC:O=0.90) was observed along with a substrate-size dependency
in selectivity, pointing to diffusion limitations induced by the pore confinement.
article_type: original
author:
- first_name: Sebastian T.
full_name: Emmerling, Sebastian T.
last_name: Emmerling
- first_name: Felix
full_name: Ziegler, Felix
last_name: Ziegler
- first_name: Felix R.
full_name: Fischer, Felix R.
last_name: Fischer
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Bernd
full_name: Plietker, Bernd
last_name: Plietker
- first_name: Michael R.
full_name: Buchmeiser, Michael R.
last_name: Buchmeiser
- first_name: Bettina V.
full_name: Lotsch, Bettina V.
last_name: Lotsch
citation:
ama: 'Emmerling ST, Ziegler F, Fischer FR, et al. Olefin Metathesis in Confinement:
Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity.
Chemistry – A European Journal. 2021;28(8). doi:10.1002/chem.202104108'
apa: 'Emmerling, S. T., Ziegler, F., Fischer, F. R., Schoch, R., Bauer, M., Plietker,
B., Buchmeiser, M. R., & Lotsch, B. V. (2021). Olefin Metathesis in Confinement:
Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity.
Chemistry – A European Journal, 28(8). https://doi.org/10.1002/chem.202104108'
bibtex: '@article{Emmerling_Ziegler_Fischer_Schoch_Bauer_Plietker_Buchmeiser_Lotsch_2021,
title={Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds
for Increased Macrocyclization Selectivity}, volume={28}, DOI={10.1002/chem.202104108},
number={8}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Emmerling,
Sebastian T. and Ziegler, Felix and Fischer, Felix R. and Schoch, Roland and Bauer,
Matthias and Plietker, Bernd and Buchmeiser, Michael R. and Lotsch, Bettina V.},
year={2021} }'
chicago: 'Emmerling, Sebastian T., Felix Ziegler, Felix R. Fischer, Roland Schoch,
Matthias Bauer, Bernd Plietker, Michael R. Buchmeiser, and Bettina V. Lotsch.
“Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds
for Increased Macrocyclization Selectivity.” Chemistry – A European Journal
28, no. 8 (2021). https://doi.org/10.1002/chem.202104108.'
ieee: 'S. T. Emmerling et al., “Olefin Metathesis in Confinement: Towards
Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity,”
Chemistry – A European Journal, vol. 28, no. 8, 2021, doi: 10.1002/chem.202104108.'
mla: 'Emmerling, Sebastian T., et al. “Olefin Metathesis in Confinement: Towards
Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity.”
Chemistry – A European Journal, vol. 28, no. 8, Wiley, 2021, doi:10.1002/chem.202104108.'
short: S.T. Emmerling, F. Ziegler, F.R. Fischer, R. Schoch, M. Bauer, B. Plietker,
M.R. Buchmeiser, B.V. Lotsch, Chemistry – A European Journal 28 (2021).
date_created: 2023-01-30T16:48:22Z
date_updated: 2023-01-31T08:05:07Z
department:
- _id: '35'
- _id: '306'
doi: 10.1002/chem.202104108
intvolume: ' 28'
issue: '8'
keyword:
- General Chemistry
- Catalysis
- Organic Chemistry
language:
- iso: eng
publication: Chemistry – A European Journal
publication_identifier:
issn:
- 0947-6539
- 1521-3765
publication_status: published
publisher: Wiley
status: public
title: 'Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds
for Increased Macrocyclization Selectivity'
type: journal_article
user_id: '48467'
volume: 28
year: '2021'
...