In Situ Study of Catalytic Processes: Neutron Diffraction of a Methanol Synthesis Catalyst at Industrially Relevant Pressure
Identifieur interne : 000342 ( Istex/Checkpoint ); précédent : 000341; suivant : 000343In Situ Study of Catalytic Processes: Neutron Diffraction of a Methanol Synthesis Catalyst at Industrially Relevant Pressure
Auteurs : Timur Kandemir [Allemagne] ; Frank Girgsdies [Allemagne] ; Thomas C. Hansen [France] ; Klaus-Dieter Liss [Australie] ; Igor Kasatkin [Allemagne] ; Edward L. Kunkes [Allemagne] ; Gregor Wowsnick [Allemagne] ; Nikolas Jacobsen [Allemagne] ; Robert Schlögl [Allemagne] ; Malte Behrens [Allemagne]Source :
- Angewandte Chemie International Edition [ 1433-7851 ] ; 2013-05-03.
Descripteurs français
- Wicri :
- topic : Méthanol.
English descriptors
- KwdEn :
- Angew, Angewandte communications, Bulk defects, Bulk inclusion, Bulk reference, Catal, Catalyst, Chem, Defect, Defect structure, Gmbh, Heterogeneous catalysis, Heterogeneous catalysts, Industrial process, Lattice, Lattice contraction, Lattice expansion, Lattice parameter, Lucas heights, Methanol, Methanol synthesis, Methanol synthesis catalyst, Mobile component, Nanoparticles, Neutron, Neutron diffraction, Oxide phase, Peak positions, Phys, Planar defects, Reference powder, Reflection pair, Relevant conditions, Rietveld analysis, Right axis, Room temperature, Same time, Thermal expansion, Thermal expansion coefficient, Thermodynamic equilibrium, Verlag gmbh, Weinheim, Weinheim angew.
- Teeft :
- Angew, Angewandte communications, Bulk defects, Bulk inclusion, Bulk reference, Catal, Catalyst, Chem, Defect, Defect structure, Gmbh, Heterogeneous catalysis, Heterogeneous catalysts, Industrial process, Lattice, Lattice contraction, Lattice expansion, Lattice parameter, Lucas heights, Methanol, Methanol synthesis, Methanol synthesis catalyst, Mobile component, Nanoparticles, Neutron, Neutron diffraction, Oxide phase, Peak positions, Phys, Planar defects, Reference powder, Reflection pair, Relevant conditions, Rietveld analysis, Right axis, Room temperature, Same time, Thermal expansion, Thermal expansion coefficient, Thermodynamic equilibrium, Verlag gmbh, Weinheim, Weinheim angew.
Abstract
Studying the workplace: An industrial methanol synthesis catalyst operating at high pressure was studied by in situ neutron diffraction. The peculiar microstructure of Cu/ZnO/Al2O3 nanocatalysts was found to be stable under reaction conditions. Stacking fault annealing and brass formation was only observed at temperatures higher than used in the methanol synthesis process, providing support for active role of defects in this catalyst system.
Url:
DOI: 10.1002/anie.201209539
Affiliations:
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<front><div type="abstract">Studying the workplace: An industrial methanol synthesis catalyst operating at high pressure was studied by in situ neutron diffraction. The peculiar microstructure of Cu/ZnO/Al2O3 nanocatalysts was found to be stable under reaction conditions. Stacking fault annealing and brass formation was only observed at temperatures higher than used in the methanol synthesis process, providing support for active role of defects in this catalyst system.</div>
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