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Hampered PdO Redox ...
Hampered PdO Redox Dynamics by Water Suppresses Lean Methane Oxidation over Realistic Palladium Catalysts
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- Velin, Peter, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hemmingsson, Felix, 1992 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Schaefer, Andreas, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Skoglundh, Magnus, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lomachenko, Kirill A. (author)
- European Synchrotron Radiation Facility (ESRF)
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- Raj, Agnes (author)
- Johnson Matthey PLC
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- Thompsett, David (author)
- Johnson Matthey PLC
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Smedler, Gudmund, 1956 (author)
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- Carlsson, Per-Anders, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2021-07-26
- 2021
- English.
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In: ChemCatChem. - : Wiley. - 1867-3899 .- 1867-3880. ; 13:17, s. 3765-3771
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Abstract
Subject headings
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- By use of operando spectroscopies under cycling reaction conditions, water is shown to hamper the redox dynamics of realistic palladium oxide nanoparticles dispersed onto alumina and hydrophobic zeolite supports thereby lowering the activity for total oxidation of methane. Water adsorption forms hydroxyl ad-species that block the methane and oxygen dissociation and seem to prevent lattice oxygen to take part in the methane oxidation. The main catalytic action is thus proposed to shift from the Mars-van Krevelen mechanism in dry conditions to a slower route that relies on Langmuir-Hinshelwood type of steps in wet conditions. This key finding has clear implications on catalyst design for low-temperature gas combustion emission control.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Keyword
- CH activation 4
- Catalyst design
- Methane emission control
- Operando characterization
- Pd catalyst
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Velin, Peter, 19 ...
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Hemmingsson, Fel ...
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Schaefer, Andrea ...
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Skoglundh, Magnu ...
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Lomachenko, Kiri ...
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Raj, Agnes
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show more...
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Thompsett, David
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Smedler, Gudmund ...
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Carlsson, Per-An ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Other Chemical E ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Other Chemistry ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Organic Chemistr ...
- Articles in the publication
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ChemCatChem
- By the university
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Chalmers University of Technology