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Effect of oxygen adsorption on the chiral pt{531} surface

Held, G., Jones, L. B., Seddon, E. A. and King, D. A. (2005) Effect of oxygen adsorption on the chiral pt{531} surface. Journal of Physical Chemistry B, 109 (13). pp. 6159-6163. ISSN 1520-6106

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To link to this article DOI: 10.1021/jp0450484

Abstract/Summary

The adsorption of oxygen on the chiral Pt{531} surface was studied by high-resolution X-ray photoelectron spectroscopy (HRXPS) and low energy electron diffraction (LEED). After the surface is annealed in oxygen (3 x 10(-7) mbar), three O 1s peaks are observed in XPS. One peak, at 529.5 eV, is assigned to chemisorbed oxygen; it disappears after annealing in vacuo to temperatures above 900 K. The other two peaks at 530.8 and 532.3 eV are stable up to at least 1250 K. They are associated with oxide clusters on the surface. These clusters readily react with coadsorbed carbon monoxide at temperatures between 315 and 620 K.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:16635
Publisher:American Chemical Society

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