Search Results - "Sheppard, Thomas L"

PtyNAMi: ptychographic nano‐analytical microscope by Schropp, Andreas, Döhrmann, Ralph, Botta, Stephan, Brückner, Dennis, Kahnt, Maik, Lyubomirskiy, Mikhail, Ossig, Christina, Scholz, Maria, Seyrich, Martin, Stuckelberger, Michael E., Wiljes, Patrik, Wittwer, Felix, Garrevoet, Jan, Falkenberg, Gerald, Fam, Yakub, Sheppard, Thomas L., Grunwaldt, Jan-Dierk, Schroer, Christian G.

“…Ptychographic X‐ray imaging at the highest spatial resolution requires an optimal experimental environment, providing a high coherent flux, excellent…”
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Catalytic reactor for operando spatially resolved structure–activity profiling using high‐energy X‐ray diffraction by Wollak, Birte, Espinoza, Diego, Dippel, Ann-Christin, Sturm, Marina, Vrljic, Filip, Gutowski, Olof, Nielsen, Ida G., Sheppard, Thomas L., Korup, Oliver, Horn, Raimund

“…In heterogeneous catalysis, operando measurements probe catalysts in their active state and are essential for revealing complex catalyst structure–activity…”
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X‐Ray Multibeam Ptychography at up to 20 keV: Nano‐Lithography Enhances X‐Ray Nano‐Imaging by Li, Tang, Kahnt, Maik, Sheppard, Thomas L., Yang, Runqing, Falch, Ken V., Zvagelsky, Roman, Villanueva‐Perez, Pablo, Wegener, Martin, Lyubomirskiy, Mikhail

“…Hard X‐rays are needed for non‐destructive nano‐imaging of solid matter. Synchrotron radiation facilities (SRF) provide the highest‐quality images with…”
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Elemental Distribution in Catalyst‐Coated Membranes of Proton Exchange Membrane Water Electrolysers Tracked by Synchrotron X‐Ray Fluorescence by Rex, Alexander, Almeida De Campos, Leonardo, Gottschalk, Torben, Ferreira Sanchez, Dario, Trinke, Patrick, Czioska, Steffen, Saraçi, Erisa, Bensmann, Boris, Grunwaldt, Jan‐Dierk, Hanke‐Rauschenbach, Richard, Sheppard, Thomas L.

“…The stability of catalyst layers and membranes in proton exchange membrane water electrolysis (PEMWE) cells represents an ongoing challenge, compounded by the…”
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Sample Environment for Operando Hard X-ray Tomography—An Enabling Technology for Multimodal Characterization in Heterogeneous Catalysis by Johannes Becher, Sebastian Weber, Dario Ferreira Sanchez, Dmitry E. Doronkin, Jan Garrevoet, Gerald Falkenberg, Debora Motta Meira, Sakura Pascarelli, Jan-Dierk Grunwaldt, Thomas L. Sheppard

“…Structure–activity relations in heterogeneous catalysis can be revealed through in situ and operando measurements of catalysts in their active state. While…”
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Structural Evolution of Highly Active Multicomponent Catalysts for Selective Propylene Oxidation by Paul Sprenger, Thomas L Sheppard, Jussi-Petteri Suuronen, Abhijeet Gaur, Federico Benzi, Jan-Dierk Grunwaldt

“…Multicomponent Bi-Mo-Fe-Co oxide catalysts prepared via flame spray pyrolysis were tested for selective propylene oxidation, showing high conversion (>70%) and…”
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Unlocking the Mysteries of Technical Catalyst Deactivation: A View from Space by Sharma, Shweta, Maurer, Florian, Lott, Patrick, Sheppard, Thomas L.

“…Modern analytical techniques enable researchers to study heterogeneous catalytic systems at extended length scales and with local probing methods which were…”
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Revealing the Structure and Mechanism of Palladium during Direct Synthesis of Hydrogen Peroxide in Continuous Flow Using Operando Spectroscopy by Selinsek, Manuel, Deschner, Benedikt J, Doronkin, Dmitry E, Sheppard, Thomas L, Grunwaldt, Jan-Dierk, Dittmeyer, Roland

“…The direct synthesis of H2O2 is a dream reaction in the field of selective oxidation and green chemical synthesis. However, the unknown active state of the…”
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Hard X‐Ray Nanotomography for 3D Analysis of Coking in Nickel‐Based Catalysts by Weber, Sebastian, Batey, Darren, Cipiccia, Silvia, Stehle, Matthias, Abel, Ken L., Gläser, Roger, Sheppard, Thomas L.

“…Understanding catalyst deactivation by coking is crucial for knowledge‐based catalyst and process design in reactions with carbonaceous species. Post‐mortem…”
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An Advanced Characterization Toolbox for Selective Olefin Oxidation Catalysts by Klag, Linda, Sheppard, Thomas L., Grunwaldt, Jan‐Dierk

“…The selective oxidation of propylene and isobutene form a central cornerstone in chemical industry, typically catalysed by bismuth molybdate based…”
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Tomographic reconstruction with a generative adversarial network by Yang, Xiaogang, Kahnt, Maik, Brückner, Dennis, Schropp, Andreas, Fam, Yakub, Becher, Johannes, Grunwaldt, Jan-Dierk, Sheppard, Thomas L., Schroer, Christian G.

“…This paper presents a deep learning algorithm for tomographic reconstruction (GANrec). The algorithm uses a generative adversarial network (GAN) to solve the…”
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Correction: Thermally stable mesoporous tetragonal zirconia through surfactant-controlled synthesis and Si-stabilization by Abel, Ken L, Weber, Sebastian, Poppitz, David, Titus, Juliane, Sheppard, Thomas L, Gläser, Roger

“…Correction for 'Thermally stable mesoporous tetragonal zirconia through surfactant-controlled synthesis and Si-stabilization' by Ken L. Abel et al. , RSC Adv…”
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Effect of Selectivity Enhancers on the Structure of Palladium during High-Pressure Continuous-Flow Direct Synthesis of Hydrogen Peroxide in Ethanol by Deschner, Benedikt J, Doronkin, Dmitry E, Sheppard, Thomas L, Zimina, Anna, Grunwaldt, Jan-Dierk, Dittmeyer, Roland

“…A potentially green process to produce hydrogen peroxide (H2O2) is its direct synthesis from molecular hydrogen and oxygen. Still, the lack of mechanistic…”
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Thermally stable mesoporous tetragonal zirconia through surfactant-controlled synthesis and Si-stabilization by Abel, Ken L, Weber, Sebastian, Poppitz, David, Titus, Juliane, Sheppard, Thomas L, Gläser, Roger

“…Thermally stable, highly mesoporous Si-stabilized ZrO 2 was prepared by sol-gel-synthesis. By utilizing the surfactant dodecylamine (DDA), large mesopores with…”
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Comparison of Structure and Reactivity of Hydrothermally Prepared Bi−Mo−Co−Fe−O Catalysts in Selective Propylene and Isobutene Oxidation by Klag, Linda, Baumgarten, Lorena, Gaur, Abhijeet, Sheppard, Thomas L., Grunwaldt, Jan‐Dierk

“…The elucidation of structure‐activity correlations in selective oxidation of propylene and isobutene over mixed metal oxides (MMO) is attractive for…”
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Supported Intermetallic PdZn Nanoparticles as Bifunctional Catalysts for the Direct Synthesis of Dimethyl Ether from CO‐Rich Synthesis Gas by Gentzen, Manuel, Doronkin, Dmitry E., Sheppard, Thomas L., Zimina, Anna, Li, Haisheng, Jelic, Jelena, Studt, Felix, Grunwaldt, Jan‐Dierk, Sauer, Jörg, Behrens, Silke

“…The single‐step syngas‐to‐dimethyl ether (STD) process entails economic and technical advantages over the current industrial two‐step process. Pd/ZnO‐based…”
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In Situ Multimodal 3D Chemical Imaging of a Hierarchically Structured Core@Shell Catalyst by Sheppard, Thomas L, Price, Stephen W. T, Benzi, Federico, Baier, Sina, Klumpp, Michael, Dittmeyer, Roland, Schwieger, Wilhelm, Grunwaldt, Jan-Dierk

“…A Cu/ZnO/Al2O3@ZSM-5 core@shell catalyst active for one-step conversion of synthesis gas to dimethyl ether (DME) was imaged simultaneously and in situ using…”
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Synthesis and Characterisation of Hierarchically Structured Titanium Silicalite‐1 Zeolites with Large Intracrystalline Macropores by Weissenberger, Tobias, Leonhardt, Rainer, Zubiri, Benjamin Apeleo, Pitínová‐Štekrová, Martina, Sheppard, Thomas L., Reiprich, Bastian, Bauer, Jürgen, Dotzel, Ralf, Kahnt, Maik, Schropp, Andreas, Schroer, Christian G., Grunwaldt, Jan‐Dierk, Casci, John L., Čejka, Jiří, Spiecker, Erdmann, Schwieger, Wilhelm

“…The successful synthesis of hierarchically structured titanium silicalite‐1 (TS‐1) with large intracrystalline macropores by steam‐assisted crystallisation of…”
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An intermetallic Pd2Ga nanoparticle catalyst for the single-step conversion of CO-rich synthesis gas to dimethyl ether by Gentzen, Manuel, Doronkin, Dmitry E., Sheppard, Thomas L., Grunwaldt, Jan-Dierk, Sauer, Jörg, Behrens, Silke

“…[Display omitted] •A synthetic procedure for uniform and well-defined Pd/Ga-based nanoparticles is established.•A bifunctional syngas-to-dimethyl ether…”
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Digitization in Catalysis Research: Towards a Holistic Description of a Ni/Al2O3 Reference Catalyst for CO2 Methanation by Weber, Sebastian, Zimmermann, Ronny T., Bremer, Jens, Abel, Ken L., Poppitz, David, Prinz, Nils, Ilsemann, Jan, Wendholt, Sven, Yang, Qingxin, Pashminehazar, Reihaneh, Monaco, Federico, Cloetens, Peter, Huang, Xiaohui, Kübel, Christian, Kondratenko, Evgenii, Bauer, Matthias, Bäumer, Marcus, Zobel, Mirijam, Gläser, Roger, Sundmacher, Kai, Sheppard, Thomas L.

“…There is considerable motivation in the catalysis community and chemical industry to envision a future where rational catalyst design and targeted chemical…”
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