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The effect of Bi adsorption on CO oxidation inside 1.8 nm Pt pores
Thomas F Esterle1, Andrea E Russell, Philip N Bartlett
1School of Chemistry, University of Southampton, Southampton, SO17 1BJ, UK.
Abstract:
Modification of the surface of H(1)-e Pt with Bi causes significant changes in the CO stripping voltammetry; the pre-wave disappears and CO and Bi oxidation peaks appear. The absence of the pre-wave suggests that Bi preferentially adsorbs on the trough sites of the concave 1.8 nm diameter pore walls preventing oxygenated species from nucleating there.
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