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Strain Dependent Li...
Strain Dependent Light-off Temperature in Catalysis Revealed by Planar Laser-Induced Fluorescence
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- Blomberg, Sara (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Zetterberg, Johan (author)
- Lund University,Lunds universitet,Förbränningsfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Combustion Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Zhou, Jianfeng (author)
- Lund University,Lunds universitet,Förbränningsfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Combustion Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Merte, Lindsay R. (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Gustafson, Johan (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Shipilin, Mikhail (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Trinchero, Adriana, 1975 (author)
- Chalmers University of Technology
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- Miccio, L. A. (author)
- Donostia International Physics Center,Donostia International Physics Center (DIPC)
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- Magana, A. (author)
- Universidad del Pais Vasco / Euskal Herriko Unibertsitatea,University of the Basque Country (UPV/EHU),University of the Basque Country
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- Ilyn, M. (author)
- Centro de Física de Materiales (CSIC-UPV/EHU),CSIC Centro de Física de Materiales (UPV/EHU)
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- Schiller, F. (author)
- Centro de Física de Materiales (CSIC-UPV/EHU),CSIC Centro de Física de Materiales (UPV/EHU)
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- Ortega, J. E. (author)
- Universidad del Pais Vasco / Euskal Herriko Unibertsitatea,University of the Basque Country (UPV/EHU),Centro de Física de Materiales (CSIC-UPV/EHU),Donostia International Physics Center,Donostia International Physics Center (DIPC),University of the Basque Country,CSIC Centro de Física de Materiales (UPV/EHU)
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- Bertram, Florian (author)
- Deutsches Elektronen-Synchrotron (DESY),German Electron Synchrotron (DESY)
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- Grönbeck, Henrik, 1966 (author)
- Chalmers University of Technology
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- Lundgren, Edvin (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2016-11-29
- 2017
- English.
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In: ACS Catalysis. - : American Chemical Society (ACS). - 2155-5435. ; 7:1, s. 110-114
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Understanding how specific atom sites on metal surfaces lower the energy barrier for chemical reactions is vital in catalysis. Studies on simplified model systems have shown that atoms arranged as steps on the surface play an important role in catalytic reactions, but a direct comparison of how the light-off temperature is affected by the atom orientation on the step has not yet been possible due to methodological constraints. Here we report in situ spatially resolved measurements of the CO2 production over a cylindrical-shaped Pd catalyst and show that the light-off temperature at different parts of the crystal depends on the step orientation of the two types of steps (named A and B). Our finding is supported by density functional theory calculations, revealing that the steps, in contrast to what has been previously reported in the literature, are not directly involved in the reaction onset but have the role of releasing stress.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- sites
- reactivity
- density functional theory
- noble
- steps
- crystal
- carbon-monoxide
- cylindrical crystal
- ates of america
- p917
- metal-surfaces
- v108
- platinum
- stepped surfaces
- planar laser-induced fluorescence
- CO oxidation
- Chemistry
- CO oxidation
- cylindrical crystal
- density functional theory
- planar laser-induced fluorescence
- steps
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Blomberg, Sara
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Zetterberg, Joha ...
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Zhou, Jianfeng
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Merte, Lindsay R ...
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Gustafson, Johan
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Shipilin, Mikhai ...
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show more...
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Trinchero, Adria ...
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Miccio, L. A.
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Magana, A.
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Ilyn, M.
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Schiller, F.
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Ortega, J. E.
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Bertram, Florian
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Grönbeck, Henrik ...
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Lundgren, Edvin
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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ACS Catalysis
- By the university
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Chalmers University of Technology
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Lund University