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Reversible formatio...
Reversible formation of a PdCx phase in Pd nanoparticles upon CO and O-2 exposure
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Balmes, Olivier (author)
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Resta, Andrea (author)
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Wermeille, Didier (author)
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Felici, Roberto (author)
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- Messing, Maria (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Faculty of Engineering, LTH
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- Deppert, Knut (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Liu, Zhi (author)
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Grass, Michael E. (author)
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Bluhm, Hendrik (author)
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van Rijn, Richard (author)
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Frenken, Joost W. M. (author)
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Westerstroem, Rasmus (author)
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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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- 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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- Andersen, Jesper N (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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- 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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- Royal Society of Chemistry (RSC), 2012
- 2012
- English.
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In: Physical Chemistry Chemical Physics. - : Royal Society of Chemistry (RSC). - 1463-9084 .- 1463-9076. ; 14:14, s. 4796-4801
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
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- The structure and chemical composition of Pd nanoparticles exposed to pure CO and mixtures of CO and O-2 at elevated temperatures have been studied in situ by a combination of X-ray Diffraction and X-ray Photoelectron Spectroscopy in pressures ranging from ultra high vacuum to 10 mbar and from room temperature to a few hundred degrees celsius. Our investigation shows that under CO exposure, above a certain temperature, carbon dissolves into the Pd particles forming a carbide phase. Upon exposure to CO and O-2 mixtures, the carbide phase forms and disappears reversibly, switching at the stoichiometric ratio for CO oxidation. This finding opens new scenarios for the understanding of catalytic oxidation of C-based molecules.
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)
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- By the author/editor
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Balmes, Olivier
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Resta, Andrea
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Wermeille, Didie ...
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Felici, Roberto
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Messing, Maria
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Deppert, Knut
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show more...
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Liu, Zhi
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Grass, Michael E ...
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Bluhm, Hendrik
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van Rijn, Richar ...
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Frenken, Joost W ...
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Westerstroem, Ra ...
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Blomberg, Sara
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Gustafson, Johan
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Andersen, Jesper ...
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Lundgren, Edvin
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- 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 ...
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Physical Chemist ...
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Lund University