Surface electrochemistry of CO on Pt( [formula omitted]): anion effects

In situ studies of CO adsorption by surface X-ray scattering and Fourier transform infrared (FTIR) spectroscopy techniques are used to create the link between the macroscopic kinetic rates of CO oxidation and the microscopic level of understanding the structure/site occupancy of CO on Pt(1 1 1). A r...

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Bibliographic Details
Published in:Surface science 2002-03, Vol.499 (2), p.L149-L158
Main Authors: Marković, N.M., Lucas, C.A., Rodes, A., Stamenković, V., Ross, P.N.
Format: Article
Language:English
Subjects:
Adsorption
Carbon monoxide
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Oxidation
Platinum
Study of interfaces
X-ray scattering, diffraction, and reflection
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Summary:In situ studies of CO adsorption by surface X-ray scattering and Fourier transform infrared (FTIR) spectroscopy techniques are used to create the link between the macroscopic kinetic rates of CO oxidation and the microscopic level of understanding the structure/site occupancy of CO on Pt(1 1 1). A remarkable difference in activity is observed between alkaline and acid solutions. In alkaline solution the oxidation of CO occurs at low overpotential (
ISSN:0039-6028
1879-2758
DOI:10.1016/S0039-6028(01)01821-0