Infrared spectroscopic detection of CO formed at step and terrace sites on a corrugated electrode surface plane during methanol oxidation
Journal Article
·
· Journal of Physical Chemistry
- Univ. of Michigan, Ann Arbor, MI (United States)
A platinum single crystal electrode with ordered step and terrace structures was used to probe site-dependent aspects of methanol surface chemistry. Infrared spectral features of the adsorbed CO reaction intermediate were measured in parallel experiments with Pt(335) (Pt(s)-[4(111) x (100)]) and Pt(111) electrodes. Experiments confirm that methanolic CO formation is inhibited at Pt(111) at potentials in the hydrogen adsorption region, and they reveal that methanol dissociative chemisorption proceeds to a limited extent in this potential region at the corrugated Pt(335) surface plane, where independent vibrational spectral features for CO at step and terrace sites were detected. 42 refs., 3 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 35476
- Journal Information:
- Journal of Physical Chemistry, Vol. 99, Issue 11; Other Information: PBD: 16 Mar 1995
- Country of Publication:
- United States
- Language:
- English
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