@article{16315, abstract = {{

The hard X-ray spectroscopy methods XAS, valence-to-core XES and higher solution XANES offer unique insights into organometallic reaction mechanisms.

}}, author = {{Schoch, Anke and Burkhardt, Lukas and Schoch, Roland and Stührenberg, Kai and Bauer, Matthias}}, issn = {{1359-6640}}, journal = {{Faraday Discussions}}, pages = {{113--132}}, title = {{{Hard X-ray spectroscopy: an exhaustive toolbox for mechanistic studies (?)}}}, doi = {{10.1039/c9fd00070d}}, year = {{2019}}, } @article{22545, author = {{Mai, Lukas and Zanders, David and Subaşı, Ersoy and Ciftyurek, Engin and Hoppe, Christian and Rogalla, Detlef and Gilbert, Wolfram and de los Arcos de Pedro, Maria Teresa and Schierbaum, Klaus and Grundmeier, Guido and Bock, Claudia and Devi, Anjana}}, issn = {{1944-8244}}, journal = {{ACS Applied Materials & Interfaces}}, pages = {{3169--3180}}, title = {{{Low-Temperature Plasma-Enhanced Atomic Layer Deposition of Tin(IV) Oxide from a Functionalized Alkyl Precursor: Fabrication and Evaluation of SnO2-Based Thin-Film Transistor Devices}}}, doi = {{10.1021/acsami.8b16443}}, year = {{2019}}, } @article{22544, author = {{Mai, Lukas and Boysen, Nils and Zanders, David and de los Arcos de Pedro, Maria Teresa and Mitschker, Felix and Mallick, Bert and Grundmeier, Guido and Awakowicz, Peter and Devi, Anjana}}, issn = {{0947-6539}}, journal = {{Chemistry – A European Journal}}, pages = {{7489--7500}}, title = {{{Potential Precursor Alternatives to the Pyrophoric Trimethylaluminium for the Atomic Layer Deposition of Aluminium Oxide}}}, doi = {{10.1002/chem.201900475}}, year = {{2019}}, } @article{22543, abstract = {{

Correlation between atmospheric DBD plasma-induced surface chemical changes on a ZnMgAl alloy coating and the resulting adhesive properties.

}}, author = {{Knust, Steffen and Kuhlmann, Andreas and de los Arcos de Pedro, Maria Teresa and Grundmeier, Guido}}, issn = {{2046-2069}}, journal = {{RSC Advances}}, pages = {{35077--35088}}, title = {{{Surface modification of ZnMgAl-coated steel by dielectric-barrier discharge plasma}}}, doi = {{10.1039/c9ra07378g}}, year = {{2019}}, } @article{35872, author = {{Zhang, Bingru and Schmidtke, Jürgen and Kitzerow, Heinz-Siegfried}}, issn = {{2195-1071}}, journal = {{Advanced Optical Materials}}, keywords = {{Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials}}, number = {{8}}, publisher = {{Wiley}}, title = {{{Fabrication of Lyotropic Alignment Layers for Thermotropic Liquid Crystals Facilitated by a Polymer Template}}}, doi = {{10.1002/adom.201801766}}, volume = {{7}}, year = {{2019}}, } @inproceedings{35870, author = {{Temme, Julian and Meyers, Thorsten and Reker, Julia and Vidor, Fábio F. and Vollbrecht, Joachim and Kitzerow, Heinz-Siegfried and Paradies, Jan and Hilleringmann, Ulrich}}, booktitle = {{Fifth Conference on Sensors, MEMS, and Electro-Optic Systems}}, editor = {{du Plessis, Monuko}}, publisher = {{SPIE}}, title = {{{Improved organic thin-film transistor performance by dielectric layer patterning}}}, doi = {{10.1117/12.2500286}}, year = {{2019}}, } @article{39971, author = {{Kitzerow, Heinz-Siegfried}}, issn = {{1358-314X}}, journal = {{Liquid Crystals Today}}, keywords = {{Materials Chemistry, Inorganic Chemistry, Condensed Matter Physics}}, number = {{1}}, pages = {{23--30}}, publisher = {{Informa UK Limited}}, title = {{{Pawel Pieranski – crystallographer of liquids and Alfred-Saupe-prize laureate 2019}}}, doi = {{10.1080/1358314x.2019.1625161}}, volume = {{28}}, year = {{2019}}, } @article{41031, abstract = {{The design and performance of the high-resolution wavelength-dispersive multi-crystal von Hamos-type spectrometer at PETRA III beamline P64 are described. Extended analyzer crystal collection available at the beamline allows coverage of a broad energy range from 5 keV to 20 keV with an energy resolution of 0.35–1 eV. Particular attention was paid to enabling two-color measurements by a combination of two types of analyzer crystals and two two-dimensional detectors. The performance of the spectrometer is demonstrated by elastic-line and emission-line measurements on various compounds.}}, author = {{Kalinko, Aleksandr and Caliebe, Wolfgang A. and Schoch, Roland and Bauer, Matthias}}, issn = {{1600-5775}}, journal = {{Journal of Synchrotron Radiation}}, keywords = {{Instrumentation, Nuclear and High Energy Physics, Radiation}}, number = {{1}}, pages = {{31--36}}, publisher = {{International Union of Crystallography (IUCr)}}, title = {{{A von Hamos-type hard X-ray spectrometer at the PETRA III beamline P64}}}, doi = {{10.1107/s1600577519013638}}, volume = {{27}}, year = {{2019}}, } @article{41050, abstract = {{

Gold(ii) species catalyse the cyclisation of N(2-propyn-1-yl)benzamide to 2-phenyl-5-vinylidene-2-oxazoline without halide abstraction while the neutral gold(i) complex is inactive indicating a gold(ii/i) redox-switch.

}}, author = {{Veit, Philipp and Volkert, Carla and Förster, Christoph and Ksenofontov, Vadim and Schlicher, Steffen and Bauer, Matthias and Heinze, Katja}}, issn = {{1359-7345}}, journal = {{Chemical Communications}}, keywords = {{Materials Chemistry, Metals and Alloys, Surfaces, Coatings and Films, General Chemistry, Ceramics and Composites, Electronic, Optical and Magnetic Materials, Catalysis}}, number = {{32}}, pages = {{4615--4618}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Gold(ii) in redox-switchable gold(i) catalysis}}}, doi = {{10.1039/c9cc00283a}}, volume = {{55}}, year = {{2019}}, } @article{41033, author = {{Kreft, Stefanie and Schoch, Roland and Schneidewind, Jacob and Rabeah, Jabor and Kondratenko, Evgenii V. and Kondratenko, Vita A. and Junge, Henrik and Bauer, Matthias and Wohlrab, Sebastian and Beller, Matthias}}, issn = {{2451-9294}}, journal = {{Chem}}, keywords = {{Materials Chemistry, Biochemistry (medical), General Chemical Engineering, Environmental Chemistry, Biochemistry, General Chemistry}}, number = {{7}}, pages = {{1818--1833}}, publisher = {{Elsevier BV}}, title = {{{Improving Selectivity and Activity of CO2 Reduction Photocatalysts with Oxygen}}}, doi = {{10.1016/j.chempr.2019.04.006}}, volume = {{5}}, year = {{2019}}, } @article{41825, author = {{Carl, Nico and Prévost, Sylvain and Schweins, Ralf and Houston, Judith E. and Morfin, Isabelle and Huber, Klaus}}, issn = {{0024-9297}}, journal = {{Macromolecules}}, keywords = {{Materials Chemistry, Inorganic Chemistry, Polymers and Plastics, Organic Chemistry}}, number = {{22}}, pages = {{8759--8770}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Invertible Micelles Based on Ion-Specific Interactions of Sr2+ and Ba2+ with Double Anionic Block Copolyelectrolytes}}}, doi = {{10.1021/acs.macromol.9b01924}}, volume = {{52}}, year = {{2019}}, } @article{41826, author = {{Schmidt, Nico and Keuker‐Baumann, Susanne and Meyer, Jörg and Huber, Klaus}}, issn = {{0887-6266}}, journal = {{Journal of Polymer Science Part B: Polymer Physics}}, keywords = {{Materials Chemistry, Polymers and Plastics, Physical and Theoretical Chemistry, Condensed Matter Physics}}, number = {{22}}, pages = {{1483--1495}}, publisher = {{Wiley}}, title = {{{Phase Transformation Behavior of Polylactide Probed by Small Angle Light Scattering and Calorimetry}}}, doi = {{10.1002/polb.24892}}, volume = {{57}}, year = {{2019}}, } @article{41822, author = {{Carl, Nico and Müller, Wenke and Schweins, Ralf and Huber, Klaus}}, issn = {{0743-7463}}, journal = {{Langmuir}}, keywords = {{Electrochemistry, Spectroscopy, Surfaces and Interfaces, Condensed Matter Physics, General Materials Science}}, number = {{1}}, pages = {{223--231}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Controlling Self-Assembly with Light and Temperature}}}, doi = {{10.1021/acs.langmuir.9b03040}}, volume = {{36}}, year = {{2019}}, } @article{41823, author = {{Gomez, David and Huber, Klaus and Klumpp, Stefan}}, issn = {{1948-7185}}, journal = {{The Journal of Physical Chemistry Letters}}, keywords = {{General Materials Science, Physical and Theoretical Chemistry}}, number = {{24}}, pages = {{7650--7656}}, publisher = {{American Chemical Society (ACS)}}, title = {{{On Protein Folding in Crowded Conditions}}}, doi = {{10.1021/acs.jpclett.9b02642}}, volume = {{10}}, year = {{2019}}, } @article{41827, abstract = {{

Selective binding of Ca2+ cations to block copolyelectrolytes with two anionic blocks yields well-defined micelles.

}}, author = {{Carl, Nico and Prévost, Sylvain and Schweins, Ralf and Huber, Klaus}}, issn = {{1744-683X}}, journal = {{Soft Matter}}, keywords = {{Condensed Matter Physics, General Chemistry}}, number = {{41}}, pages = {{8266--8271}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Ion-selective binding as a new trigger for micellization of block copolyelectrolytes with two anionic blocks}}}, doi = {{10.1039/c9sm01138b}}, volume = {{15}}, year = {{2019}}, } @article{41828, author = {{Hämisch, Benjamin and Büngeler, Anne and Kielar, Charlotte and Keller, Adrian and Strube, Oliver and Huber, Klaus}}, issn = {{0743-7463}}, journal = {{Langmuir}}, keywords = {{Electrochemistry, Spectroscopy, Surfaces and Interfaces, Condensed Matter Physics, General Materials Science}}, number = {{37}}, pages = {{12113--12122}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Self-Assembly of Fibrinogen in Aqueous, Thrombin-Free Solutions of Variable Ionic Strengths}}}, doi = {{10.1021/acs.langmuir.9b01515}}, volume = {{35}}, year = {{2019}}, } @article{25907, abstract = {{The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comprehensive study of a straightforward synthesis method via direct immobilization of several phosphonic acids and phosphoric acid esters on various mesoporous silicas in a Dean–Stark apparatus with toluene as the solvent. Due to the utilization of azeotropic distillation, there was no need to dry phosphonic acids, phosphoric acid esters, solvents, or silicas prior to synthesis. In addition to modeling phosphonic acids, immobilization of the important biomolecule adenosine monophosphate (AMP) on the porous supports was also investigated. Due to the high surface area of the mesoporous silicas, a possible catalytic application based on immobilization of an organocatalyst for an asymmetric aldol reaction is discussed.}}, author = {{Weinberger, Christian and Heckel, Tatjana and Schnippering, Patrick and Schmitz, Markus and Guo, Anpeng and Keil, Waldemar and Marsmann, Heinrich C. and Schmidt, Claudia and Tiemann, Michael and Wilhelm, René}}, issn = {{2079-4991}}, journal = {{Nanomaterials}}, title = {{{Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction}}}, doi = {{10.3390/nano9020249}}, year = {{2019}}, } @article{25904, abstract = {{We examined the effect of CaCl2 and LiCl on ice melting in mesoporous silica (MCM-41 and SBA-15 silica). For that purpose, we determined the ice melting temperature in pores of various size (pore radii between 1.9 and 11.1 nm) in water and aqueous solutions up to high total solute molality (up to about 12 mol kg–1) using differential scanning calorimetry. We found that both electrolytes reduce the ice melting temperature within the pores. An exception is the melting of ice in the smallest pores, which does not seem to be affected by the presence of solutes, most likely owing to an exclusion of the ions from entering the pores. For all other pores, we observed that the ice melting temperature decreases as a function of pore size and electrolyte concentration. Using thermodynamic considerations as well as additional experimental data we developed a parametrization that can be used to predict the ice melting point as a function of pore size and total solute molality. For that purpose, we extended a formulation of the effective water activity of aqueous solutions under mechanical pressure toward its application in confinement and tested this new parametrization on literature data.}}, author = {{Jantsch, Evelyn and Weinberger, Christian and Tiemann, Michael and Koop, Thomas}}, issn = {{1932-7447}}, journal = {{The Journal of Physical Chemistry C}}, pages = {{24566--24574}}, title = {{{Phase Transitions of Ice in Aqueous Salt Solutions within Nanometer-Sized Pores}}}, doi = {{10.1021/acs.jpcc.9b06527}}, year = {{2019}}, } @article{25905, abstract = {{A nanocomposite material based on copper(II) oxide (CuO) and its utilization as a highly selective and stable gas-responsive electrical switch for hydrogen sulphide (H2S) detection is presented. The material can be applied as a sensitive layer for H2S monitoring, e.g., in biogas gas plants. CuO nanoparticles are embedded in a rigid, nanoporous silica (SiO2) matrix to form an electrical percolating network of low conducting CuO and, upon exposure to H2S, highly conducting copper(II) sulphide (CuS) particles. By steric hindrance due to the silica pore walls, the structure of the network is maintained even though the reversible reaction of CuO to CuS is accompanied by significant volume expansion. The conducting state of the percolating network can be controlled by a variety of parameters, such as temperature, electrode layout, and network topology of the porous silica matrix. The latter means that this new type of sensing material has a structure-encoded detection limit for H2S, which offers new application opportunities. The fabrication process of the mesoporous CuO@SiO2 composite as well as the sensor design and characteristics are described in detail. In addition, theoretical modeling of the percolation effect by Monte-Carlo simulations yields deeper insight into the underlying percolation mechanism and the observed response characteristics.}}, author = {{Paul, Andrej and Schwind, Bertram and Weinberger, Christian and Tiemann, Michael and Wagner, Thorsten}}, issn = {{1616-301X}}, journal = {{Advanced Functional Materials}}, title = {{{Gas Responsive Nanoswitch: Copper Oxide Composite for Highly Selective H2S Detection}}}, doi = {{10.1002/adfm.201904505}}, year = {{2019}}, } @article{25908, abstract = {{Herein we present a new proton-conducting iron(II) metal–organic framework (MOF) of an unusual structure formed by chains of alternating bistriazolate-p-benzoquinone anions and iron(II) cations with four axially coordinated water molecules. These chains assemble via π–π stacking between the aromatic units to form a three-dimensional grid-like network with channel pores filled with water molecules. The material was structurally characterized by single-crystal XRD analysis, and its water and thermal stability was investigated. The proton conductivity was studied by impedance measurements on needle-like single crystals. A simple but efficient measurement setup consisting of interdigital electrodes was used. The influence of the crystal orientation, temperature, and humidity was investigated. The iron(II)-MOF showed the highest proton conductivity of 3.3·10–3 S cm–1 at 22 °C and 94% relative humidity. Contrary to most known structures, the conductivity in this material is controlled by chemical properties of the pore system rather than by grain boundaries. The presented material is the starting point for further tailoring the proton-conducting properties, independent of morphological features which could find potential applications as membrane materials in proton-exchange membrane fuel cells.}}, author = {{Bunzen, Hana and Javed, Ali and Klawinski, Danielle and Lamp, Anton and Grzywa, Maciej and Kalytta-Mewes, Andreas and Tiemann, Michael and von Nidda, Hans-Albrecht Krug and Wagner, Thorsten and Volkmer, Dirk}}, issn = {{2574-0970}}, journal = {{ACS Applied Nano Materials}}, pages = {{291--298}}, title = {{{Anisotropic Water-Mediated Proton Conductivity in Large Iron(II) Metal–Organic Framework Single Crystals for Proton-Exchange Membrane Fuel Cells}}}, doi = {{10.1021/acsanm.8b01902}}, year = {{2019}}, }