Electrocatalytic oxidation of methanol on platinum nanoparticles electrodeposited onto porous carbon substrates |
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Authors: | F GLOAGUEN J-M LE´GER C LAMY |
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Affiliation: | (1) Laboratoire de Chimie I, Electrochimie et Interactions, URA au CNRS no. 350, Universite´ de Poitiers, 40 av. du Recteur Pineau, 86022 Poitiers, France |
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Abstract: | To achieve methanol fuel cell electrodes allowing a high catalyst use, thin layers of various carbon powders and recast Nafion® were electrochemically plated with platinum. The resulting Pt deposits were characterized by hydrogen and carbon monoxide electrosorption, as well as by transmission electron microscopy. Methanol oxidation was then carried out using cyclic voltammetry. The influence of the amount of carbon surface oxides and the effect of Pt specific surface area on the Pt catalytic activity were thus investigated. |
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Keywords: | methanol oxidation TEM carbon support platinum catalyst particle size effect |
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