Electrochemical and surface-enhanced Raman studies of CO and methanol oxidation in the presence of sub-monolayer co-adsorbed sulfur [electronic resource] /

by Mattox, Mathew Allen.; Miami University (Oxford, Ohio). Dept.; Theses and, OhioLINK Electronic

Abstract (Summary)
Electrooxidation of carbon monoxide (CO) and methanol on platinum are two important reactions in direct methanol fuel cells. The presence of coadsorbates often modifies the reaction significantly. In this thesis we report our studies on the effects of adsorbed sulfur on CO and methanol electrooxidation on Pt. Although adsorbed sulfur is often considered a surface poison, the cyclic voltammetric and chronoamperometric results show that the presence of a sub-monolayer of adsorbed sulfur promotes the aforementioned reactions. Surface-enhanced Raman spectroscopy, together with electrochemical results, was used to elucidate a possible mechanism of the enhancement effect.
Bibliographical Information:


School:Miami University

School Location:USA - Ohio

Source Type:Master's Thesis

Keywords:carbon monoxide methanol electrochemistry co surface enhanced raman oxidation


Date of Publication:

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