@article{41023,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Efficient oxygen evolution reaction (OER) electrocatalysts are pivotal for sustainable fuel production, where the Ni-Fe oxyhydroxide (OOH) is among the most active catalysts for alkaline OER. Electrolyte alkali metal cations have been shown to modify the activity and reaction intermediates, however, the exact mechanism is at question due to unexplained deviations from the cation size trend. Our X-ray absorption spectroelectrochemical results show that bigger cations shift the Ni<jats:sup>2+/(3+δ)+</jats:sup> redox peak and OER activity to lower potentials (however, with typical discrepancies), following the order CsOH &gt; NaOH ≈ KOH &gt; RbOH &gt; LiOH. Here, we find that the OER activity follows the variations in electrolyte pH rather than a specific cation, which accounts for differences both in basicity of the alkali hydroxides and other contributing anomalies. Our density functional theory-derived reactivity descriptors confirm that cations impose negligible effect on the Lewis acidity of Ni, Fe, and O lattice sites, thus strengthening the conclusions of an indirect pH effect.</jats:p>}},
  author       = {{Görlin, Mikaela and Halldin Stenlid, Joakim and Koroidov, Sergey and Wang, Hsin-Yi and Börner, Mia and Shipilin, Mikhail and Kalinko, Aleksandr and Murzin, Vadim and Safonova, Olga V. and Nachtegaal, Maarten and Uheida, Abdusalam and Dutta, Joydeep and Bauer, Matthias and Nilsson, Anders and Diaz-Morales, Oscar}},
  issn         = {{2041-1723}},
  journal      = {{Nature Communications}},
  keywords     = {{General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry, Multidisciplinary}},
  number       = {{1}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Key activity descriptors of nickel-iron oxygen evolution electrocatalysts in the presence of alkali metal cations}}},
  doi          = {{10.1038/s41467-020-19729-2}},
  volume       = {{11}},
  year         = {{2020}},
}

@article{41024,
  author       = {{Gujt, Jure and Zimmer, Peter and Zysk, Frederik and Süß, Vicky and Felser, Claudia and Bauer, Matthias and Kühne, Thomas}},
  issn         = {{2329-7778}},
  journal      = {{Structural Dynamics}},
  keywords     = {{Spectroscopy, Condensed Matter Physics, Instrumentation, Radiation}},
  number       = {{3}},
  publisher    = {{AIP Publishing}},
  title        = {{{Water structure near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction}}},
  doi          = {{10.1063/4.0000008}},
  volume       = {{7}},
  year         = {{2020}},
}

@article{41027,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Fluoride ion batteries (FIBs) are a recent alternative all-solid-state battery technology. However, the FIB systems proposed so far suffer from poor cycling performance. In this work, we report La<jats:sub>2</jats:sub>NiO<jats:sub>4.13</jats:sub> with a Ruddlesden-Popper type structure as an intercalation-based active cathode material in all solid-state FIB with excellent cycling performance. The critical charging conditions to maintain the conductivity of the cell were determined, which seems to be a major obstacle towards improving the cycling stability of FIBs. For optimized operating conditions, a cycle life of about 60 cycles and over 220 cycles for critical cut-off capacities of 50 mAh/g and 30 mAh/g, respectively, could be achieved, with average Coulombic efficiencies between 95 – 99%. Cycling of the cell is a result of fluorination/de-fluorination into and from the La<jats:sub>2</jats:sub>NiO<jats:sub>4+d</jats:sub> cathode, and it is revealed that La<jats:sub>2</jats:sub>NiO<jats:sub>4.13</jats:sub> is a multivalent electrode material. Our findings suggest that La<jats:sub>2</jats:sub>NiO<jats:sub>4.13</jats:sub> is a promising high energy cathode for FIBs.</jats:p>}},
  author       = {{Nowroozi, Mohammad Ali and Wissel, Kerstin and Donzelli, Manuel and Hosseinpourkahvaz, Niloofar and Plana-Ruiz, Sergi and Kolb, Ute and Schoch, Roland and Bauer, Matthias and Malik, Ali Muhammad and Rohrer, Jochen and Ivlev, Sergei and Kraus, Florian and Clemens, Oliver}},
  issn         = {{2662-4443}},
  journal      = {{Communications Materials}},
  keywords     = {{Mechanics of Materials, General Materials Science}},
  number       = {{1}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{High cycle life all-solid-state fluoride ion battery with La<jats:sub>2</jats:sub>NiO<jats:sub>4+d</jats:sub> high voltage cathode}}},
  doi          = {{10.1038/s43246-020-0030-5}},
  volume       = {{1}},
  year         = {{2020}},
}

@article{41019,
  author       = {{Zobel, J. Patrick and Bokareva, Olga S. and Zimmer, Peter and Wölper, Christoph and Bauer, Matthias and González, Leticia}},
  issn         = {{0020-1669}},
  journal      = {{Inorganic Chemistry}},
  keywords     = {{Inorganic Chemistry, Physical and Theoretical Chemistry}},
  number       = {{20}},
  pages        = {{14666--14678}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Intersystem Crossing and Triplet Dynamics in an Iron(II) N-Heterocyclic Carbene Photosensitizer}}},
  doi          = {{10.1021/acs.inorgchem.0c02147}},
  volume       = {{59}},
  year         = {{2020}},
}

@article{41029,
  author       = {{Naumova, Maria A. and Kalinko, Aleksandr and Wong, Joanne W. L. and Abdellah, Mohamed and Geng, Huifang and Domenichini, Edoardo and Meng, Jie and Gutierrez, Sol Alvarez and Mante, Pierre-Adrien and Lin, Weihua and Zalden, Peter and Galler, Andreas and Lima, Frederico and Kubicek, Katharina and Biednov, Mykola and Britz, Alexander and Checchia, Stefano and Kabanova, Victoria and Wulff, Michael and Zimara, Jennifer and Schwarzer, Dirk and Demeshko, Serhiy and Murzin, Vadim and Gosztola, David and Jarenmark, Martin and Zhang, Jianxin and Bauer, Matthias and Lawson Daku, Max Latevi and Gawelda, Wojciech and Khakhulin, Dmitry and Bressler, Christian and Meyer, Franc and Zheng, Kaibo and Canton, Sophie E.}},
  issn         = {{1948-7185}},
  journal      = {{The Journal of Physical Chemistry Letters}},
  keywords     = {{General Materials Science, Physical and Theoretical Chemistry}},
  number       = {{6}},
  pages        = {{2133--2141}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Revealing Hot and Long-Lived Metastable Spin States in the Photoinduced Switching of Solvated Metallogrid Complexes with Femtosecond Optical and X-ray Spectroscopies}}},
  doi          = {{10.1021/acs.jpclett.9b03883}},
  volume       = {{11}},
  year         = {{2020}},
}

@article{41028,
  author       = {{Naumova, Maria A. and Kalinko, Aleksandr and Wong, Joanne W. L. and Alvarez Gutierrez, Sol and Meng, Jie and Liang, Mingli and Abdellah, Mohamed and Geng, Huifang and Lin, Weihua and Kubicek, Katharina and Biednov, Mykola and Lima, Frederico and Galler, Andreas and Zalden, Peter and Checchia, Stefano and Mante, Pierre-Adrien and Zimara, Jennifer and Schwarzer, Dirk and Demeshko, Serhiy and Murzin, Vadim and Gosztola, David and Jarenmark, Martin and Zhang, Jianxin and Bauer, Matthias and Lawson Daku, Max Latevi and Khakhulin, Dmitry and Gawelda, Wojciech and Bressler, Christian and Meyer, Franc and Zheng, Kaibo and Canton, Sophie E.}},
  issn         = {{0021-9606}},
  journal      = {{The Journal of Chemical Physics}},
  keywords     = {{Physical and Theoretical Chemistry, General Physics and Astronomy}},
  number       = {{21}},
  publisher    = {{AIP Publishing}},
  title        = {{{Exploring the light-induced dynamics in solvated metallogrid complexes with femtosecond pulses across the electromagnetic spectrum}}},
  doi          = {{10.1063/1.5138641}},
  volume       = {{152}},
  year         = {{2020}},
}

@article{25302,
  author       = {{Ressel, Joerg and Seewald, Oliver and Bremser, Wolfgang and Reicher, Hans-Peter and Strube, Oliver I.}},
  issn         = {{0300-9440}},
  journal      = {{Progress in Organic Coatings}},
  title        = {{{Self-lubricating coatings via PDMS micro-gel dispersions}}},
  doi          = {{10.1016/j.porgcoat.2020.105705}},
  year         = {{2020}},
}

@article{41819,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Block copolymers were prepared with two anionic polyelectrolyte blocks: sodium polyacrylate (PA) and sodium polystyrene sulfonate (PSS), in order to investigate their phase behavior in aqueous solution in the presence of Ca<jats:sup>2+</jats:sup> cations. Depending on the concentration of polymer and Ca<jats:sup>2+</jats:sup> and on the ratio of the block lengths in the copolymer, spherical micelles were observed. Micelle formation arises from the specific interaction of Ca<jats:sup>2+</jats:sup> with the PA block only. An extensive small-angle scattering study was performed in order to unravel the structure and dimensions of the block copolymer micelles. Deuteration of the PA block enabled us to perform contrast variation experiments using small-angle neutron scattering at variable ratios of light and heavy water which were combined with information from small-angle X-ray scattering and dynamic light scattering.</jats:p>}},
  author       = {{Carl, Nico and Prévost, Sylvain and Schweins, Ralf and Huber, Klaus}},
  issn         = {{0303-402X}},
  journal      = {{Colloid and Polymer Science}},
  keywords     = {{Materials Chemistry, Colloid and Surface Chemistry, Polymers and Plastics, Physical and Theoretical Chemistry}},
  number       = {{7}},
  pages        = {{663--679}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Contrast variation of micelles composed of Ca2+ and block copolymers of two negatively charged polyelectrolytes}}},
  doi          = {{10.1007/s00396-019-04596-1}},
  volume       = {{298}},
  year         = {{2020}},
}

@article{41821,
  author       = {{Sistemich, Linda and Kutsch, Miriam and Hämisch, Benjamin and Zhang, Ping and Shydlovskyi, Sergii and Britzen-Laurent, Nathalie and Stürzl, Michael and Huber, Klaus and Herrmann, Christian}},
  issn         = {{0022-2836}},
  journal      = {{Journal of Molecular Biology}},
  keywords     = {{Molecular Biology, Structural Biology}},
  number       = {{7}},
  pages        = {{2164--2185}},
  publisher    = {{Elsevier BV}},
  title        = {{{The Molecular Mechanism of Polymer Formation of Farnesylated Human Guanylate-binding Protein 1}}},
  doi          = {{10.1016/j.jmb.2020.02.009}},
  volume       = {{432}},
  year         = {{2020}},
}

@article{41820,
  author       = {{Hämisch, Benjamin and Pollak, Roland and Ebbinghaus, Simon and Huber, Klaus}},
  issn         = {{0947-6539}},
  journal      = {{Chemistry – A European Journal}},
  keywords     = {{General Chemistry, Catalysis, Organic Chemistry}},
  number       = {{31}},
  pages        = {{7041--7050}},
  publisher    = {{Wiley}},
  title        = {{{Self‐Assembly of Pseudo‐Isocyanine Chloride as a Sensor for Macromolecular Crowding In Vitro and In Vivo}}},
  doi          = {{10.1002/chem.202000113}},
  volume       = {{26}},
  year         = {{2020}},
}

@article{41824,
  author       = {{Hämisch, Benjamin and Pollak, Roland and Ebbinghaus, Simon and Huber, Klaus}},
  issn         = {{0947-6539}},
  journal      = {{Chemistry – A European Journal}},
  keywords     = {{General Chemistry, Catalysis, Organic Chemistry}},
  number       = {{31}},
  pages        = {{7041--7050}},
  publisher    = {{Wiley}},
  title        = {{{Self‐Assembly of Pseudo‐Isocyanine Chloride as a Sensor for Macromolecular Crowding In Vitro and In Vivo}}},
  doi          = {{10.1002/chem.202000113}},
  volume       = {{26}},
  year         = {{2020}},
}

@article{25901,
  abstract     = {{Thermally stabilized and subsequently carbonized nanofibers are a promising material for many technical applications in fields such as tissue engineering or energy storage. They can be obtained from a variety of different polymer precursors via electrospinning. While some methods have been tested for post-carbonization doping of nanofibers with the desired ingredients, very little is known about carbonization of blend nanofibers from two or more polymeric precursors. In this paper, we report on the preparation, thermal treatment and resulting properties of poly(acrylonitrile) (PAN)/poly(vinylidene fluoride) (PVDF) blend nanofibers produced by wire-based electrospinning of binary polymer solutions. Using a wide variety of spectroscopic, microscopic and thermal characterization methods, the chemical and morphological transition during oxidative stabilization (280 °C) and incipient carbonization (500 °C) was thoroughly investigated. Both PAN and PVDF precursor polymers were detected and analyzed qualitatively and quantitatively during all stages of thermal treatment. Compared to pure PAN nanofibers, the blend nanofibers showed increased fiber diameters, strong reduction of undesired morphological changes during oxidative stabilization and increased conductivity after carbonization.}},
  author       = {{Wortmann, Martin and Frese, Natalie and Mamun, Al and Trabelsi, Marah and Keil, Waldemar and Büker, Björn and Javed, Ali and Tiemann, Michael and Moritzer, Elmar and Ehrmann, Andrea and Hütten, Andreas and Schmidt, Claudia and Gölzhäuser, Armin and Hüsgen, Bruno and Sabantina, Lilia}},
  issn         = {{2079-4991}},
  journal      = {{Nanomaterials}},
  title        = {{{Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization}}},
  doi          = {{10.3390/nano10061210}},
  year         = {{2020}},
}

@article{25899,
  abstract     = {{Large Co-MOF-74 crystals of a few hundred micrometers were prepared by solvothermal synthesis, and their structure and morphology were characterized by scanning electron microscopy (SEM), IR, and Raman spectroscopy. The hydrothermal stability of the material up to 60 °C at 93% relative humidity was verified by temperature-dependent XRD. Proton conductivity was studied by impedance spectroscopy, using a single crystal. By varying the relative humidity (70–95%), temperature (21–60 °C), and orientation of the crystal relative to the electrical potential, it was found that proton conduction occurs predominantly through the linear, unidirectional (1D) micropore channels of Co-MOF-74, and that water molecules inside the channels are responsible for the proton mobility by a Grotthuss-type mechanism.}},
  author       = {{Javed, Ali and Strauss, Ina and Bunzen, Hana and Caro, Jürgen and Tiemann, Michael}},
  issn         = {{2079-4991}},
  journal      = {{Nanomaterials}},
  title        = {{{Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74}}},
  doi          = {{10.3390/nano10071263}},
  year         = {{2020}},
}

@article{25903,
  abstract     = {{Porous tin dioxide is an important low-cost semiconductor applied in electronics, gas sensors, and biosensors. Here, we present a versatile template-assisted synthesis of nanostructured tin dioxide thin films using cellulose nanocrystals (CNCs). We demonstrate that the structural features of CNC-templated tin dioxide films strongly depend on the precursor composition. The precursor properties were studied by using low-temperature nuclear magnetic resonance spectroscopy of tin tetrachloride in solution. We demonstrate that it is possible to optimize the precursor conditions to obtain homogeneous precursor mixtures and therefore highly porous thin films with pore dimensions in the range of 10–20 nm (ABET = 46–64 m2 g–1, measured on powder). Finally, by exploiting the high surface area of the material, we developed a resistive gas sensor based on CNC-templated tin dioxide. The sensor shows high sensitivity to carbon monoxide (CO) in ppm concentrations and low cross-sensitivity to humidity. Most importantly, the sensing kinetics are remarkably fast; both the response to the analyte gas and the signal decay after gas exposure occur within a few seconds, faster than in standard SnO2-based CO sensors. This is attributed to the high gas accessibility of the very thin porous film.}},
  author       = {{Ivanova, Alesja and Frka-Petesic, Bruno and Paul, Andrej and Wagner, Thorsten and Jumabekov, Askhat N. and Vilk, Yury and Weber, Johannes and Schmedt auf der Günne, Jörn and Vignolini, Silvia and Tiemann, Michael and Fattakhova-Rohlfing, Dina and Bein, Thomas}},
  issn         = {{1944-8244}},
  journal      = {{ACS Applied Materials & Interfaces}},
  pages        = {{12639--12647}},
  title        = {{{Cellulose Nanocrystal-Templated Tin Dioxide Thin Films for Gas Sensing}}},
  doi          = {{10.1021/acsami.9b11891}},
  year         = {{2020}},
}

@article{23854,
  abstract     = {{Micropatterned nanoporous aluminum oxide arrays are prepared on silicon wafer substrates by using photopolymerized poly(dimethylacrylamide) hydrogels as porogenic matrices. Hydrogel micropatterns are fabricated by spreading the prepolymer mixture on the substrate, followed by UV photopolymerization through a micropatterned mask. The hydrogel is covalently bonded to the substrate surface. Al2O3 is produced by swelling the hydrogel in a saturated aluminum nitrate solution and subsequent thermal conversion/calcination. As a result, micropatterned porous Al2O3 microdots with heights in µm range and large specific surface areas up to 274 m2 g−1 are obtained. Hence, the hydrogel fulfills a dual templating function, namely micropatterning and nanoporosity generation. The impact of varying the photopolymerization time on the properties of the products is studied. Samples are characterized by light and confocal laser scanning microscopy, scanning electron microscopy, energy-dispersive x-ray spectrometry, and Kr physisorption analysis.}},
  author       = {{Chen, Zimei and Kuckling, Dirk and Tiemann, Michael}},
  issn         = {{0957-4484}},
  journal      = {{Nanotechnology}},
  publisher    = {{IOP Publishing}},
  title        = {{{Nanoporous aluminum oxide micropatterns prepared by hydrogel templating}}},
  doi          = {{10.1088/1361-6528/aba710}},
  volume       = {{31}},
  year         = {{2020}},
}

@article{25898,
  abstract     = {{Metal oxide inverse opals are interesting for various applications. To achieve highly ordered inverse opal structures, one important issue during the colloidal crystal templating procedure is to form a stable precursor network before the template loses its structural integrity at high temperature. Using poly(methyl methacrylate), PMMA, colloidal crystal templates, it is essential to consider the physical and chemical changes of the precursors induced by the changes of PMMA during the thermal conversion. For a systematic investigation of this matter, we synthesized a variety of metal oxide inverse opals from the respective metal nitrates, including Cr2O3, Ga2O3, Fe2O3, In2O3, CuO, CeO2, and ZnO, to compare the effect of various modifications of precursors on the structural and optical properties. When the nitrate precursors have a lower thermal stability than the PMMA template, we have modified the metal nitrates by chelating or by polyacrylamide gelation to form more stable precursor networks.}},
  author       = {{Zhang, Xuyang and Weinberger, Christian and Amrehn, Sabrina and Wu, Xia and Tiemann, Michael and Wagner, Thorsten}},
  issn         = {{1434-1948}},
  journal      = {{European Journal of Inorganic Chemistry}},
  pages        = {{3402--3407}},
  title        = {{{Synthesis of Metal Oxide Inverse Opals from Metal Nitrates by PMMA Colloidal Crystal Templating}}},
  doi          = {{10.1002/ejic.202000517}},
  year         = {{2020}},
}

@article{25900,
  abstract     = {{The proton conduction properties of a phosphonato-sulfonate-based coordination polymer are studied by impedance spectroscopy using a single crystal specimen. Two distinct conduction mechanisms are identified. Water-mediated conductance along the crystal surface occurs by mass transport, as evidenced by a high activation energy (0.54 eV). In addition, intrinsic conduction by proton ′hopping′ through the interior of the crystal with a low activation energy (0.31 eV) is observed. This latter conduction is anisotropic with respect to the crystal structure and seems to occur through a channel along the c axis of the orthorhombic crystal. Proton conduction is assumed to be mediated by sulfonate groups and non-coordinating water molecules that are part of the crystal structure.}},
  author       = {{Javed, Ali and Wagner, Thorsten and Wöhlbrandt, Stephan and Stock, Norbert and Tiemann, Michael}},
  issn         = {{1439-4235}},
  journal      = {{ChemPhysChem}},
  pages        = {{605--609}},
  title        = {{{Proton Conduction in a Single Crystal of a Phosphonato‐Sulfonate‐Based Coordination Polymer: Mechanistic Insight}}},
  doi          = {{10.1002/cphc.202000102}},
  year         = {{2020}},
}

@article{25902,
  abstract     = {{This Special Issue on “Functional Nanoporous Materials” in the MDPI journal nanomaterials features seven original papers ...}},
  author       = {{Weinberger, Christian and Tiemann, Michael}},
  issn         = {{2079-4991}},
  journal      = {{Nanomaterials}},
  title        = {{{Functional Nanoporous Materials}}},
  doi          = {{10.3390/nano10040699}},
  year         = {{2020}},
}

@article{43747,
  abstract     = {{Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the vorticity, they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner.}},
  author       = {{Meier, Torsten and Ma, Xuekai and Berger, Bernd and Aßmann, Marc and Driben, Rodislav and Schneider, Christian and Höfling, Sven and Schumacher, Stefan}},
  journal      = {{Nature communications}},
  number       = {{1}},
  pages        = {{897}},
  publisher    = {{Nature Publishing Group UK}},
  title        = {{{Realization of all-optical vortex switching in exciton-polariton condensates}}},
  doi          = {{10.1038/s41467-020-14702-5}},
  volume       = {{11}},
  year         = {{2020}},
}

@inproceedings{42892,
  abstract     = {{This paper presents the results of static short-term and long-term tensile tests for beta-nucleated joined polypropylene samples by the hot plate welding process. In the present study different dimensionless joining displacements are accounted for. The results show that high short-term tensile strength does not directly transfer to high long-term tensile strength. The morphology of the weld seam in the joined samples is examined by means of transmitted and reflected light microscopy. For the dimensionless joining displacements of 0.75 and 0.95, stretched spherulites are obtained. X-Ray diffraction can be used as a tool for qualitative and quantitative analysis and eventually for differentiation of samples of various joining displacements.}},
  author       = {{Wübbeke, Andrea and Schöppner, Volker and Paul, André and Tiemann, Michael and Austermeier, Laura and Fitze, Marcus and Chen, Mingie and Jakob, Fabian and Heim, Hans-Peter and Wu, Tao and Niendorf, Thomas and Röhricht, Marie-Luise and Schmidt, Michael}},
  booktitle    = {{SPE ANTEC 2020: The Virtual Edition 5 }},
  title        = {{{Long- and Short-Term Tensile Strength and Morphology of Joined Beta-Nucleated Polypropylene Parts}}},
  year         = {{2020}},
}