Oxygen Storage by Tin Oxide Monolayers on Pt3Sn(111)
(2023) In Journal of Physical Chemistry C 127(6). p.2988-2994- Abstract
The high performance of platinum-Tin catalysts for oxidation reactions has been linked to the formation of tin oxides at the metal surface, but little is known about the structure of these oxides or the chemical behavior that determines their catalytic properties. We show here how surface oxides on Pt3Sn(111) incorporate oxygen at the metal interface, which may be subsequently removed by reaction with CO. The storage mechanism, where oxygen uptake occurs without loss of interfacial Pt-Sn bonds, is enabled by the peculiar asymmetrical coordination state of Sn2+. O atoms are bound at pocket sites in the 2D oxide sheet between these outward-buckled Sn atoms and metallic Sn in the alloy surface below.
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https://lup.lub.lu.se/record/bb027a9f-4eea-4378-a5fe-c6e83d22a37b
- author
- Merte, Lindsay R. LU ; Braud, Nicolas ; Bu, Lars ; Bisbo, Malthe Kjær ; Wallander, Harald J. LU ; Krisponeit, Jon Olaf ; Flege, Jan Ingo ; Hammer, Bjørk ; Falta, Jens and Lundgren, Edvin LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physical Chemistry C
- volume
- 127
- issue
- 6
- pages
- 2988 - 2994
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85147866272
- ISSN
- 1932-7447
- DOI
- 10.1021/acs.jpcc.2c09041
- language
- English
- LU publication?
- yes
- id
- bb027a9f-4eea-4378-a5fe-c6e83d22a37b
- date added to LUP
- 2023-02-20 14:22:09
- date last changed
- 2023-11-21 06:57:03
@article{bb027a9f-4eea-4378-a5fe-c6e83d22a37b, abstract = {{<p>The high performance of platinum-Tin catalysts for oxidation reactions has been linked to the formation of tin oxides at the metal surface, but little is known about the structure of these oxides or the chemical behavior that determines their catalytic properties. We show here how surface oxides on Pt3Sn(111) incorporate oxygen at the metal interface, which may be subsequently removed by reaction with CO. The storage mechanism, where oxygen uptake occurs without loss of interfacial Pt-Sn bonds, is enabled by the peculiar asymmetrical coordination state of Sn2+. O atoms are bound at pocket sites in the 2D oxide sheet between these outward-buckled Sn atoms and metallic Sn in the alloy surface below.</p>}}, author = {{Merte, Lindsay R. and Braud, Nicolas and Bu, Lars and Bisbo, Malthe Kjær and Wallander, Harald J. and Krisponeit, Jon Olaf and Flege, Jan Ingo and Hammer, Bjørk and Falta, Jens and Lundgren, Edvin}}, issn = {{1932-7447}}, language = {{eng}}, number = {{6}}, pages = {{2988--2994}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of Physical Chemistry C}}, title = {{Oxygen Storage by Tin Oxide Monolayers on Pt<sub>3</sub>Sn(111)}}, url = {{http://dx.doi.org/10.1021/acs.jpcc.2c09041}}, doi = {{10.1021/acs.jpcc.2c09041}}, volume = {{127}}, year = {{2023}}, }