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  • Basic investigations for the development of an electrocatalytic anode for a methanol acid battery : Research into the selectivity of metallic catalysts for the electro-oxidation of methanol


The main aim of this project was to identify, from fundamental data, ways of controlling the selectivity and activity of the catalyst in the oxidation of methanol, employing hydrogen adsorption as a structure-sensitive probe on the surface of the single platinum crystals which form the electrodes. The study concluded that adsorbed CO is the stable long-term product, linearly bonded or bridge-bonded to surface sites. To determine the intrinsic activity of an electrode with a given crystalline surface structure, a variant of pulsed voltammetry was developed, which preserved the ordered surface structure from damage. On closer examination of the effect of adatoms on the formation of the blocking species, it was observed that they block the poison formation, providing new possibilities for acting on the selectivity of the electrocatalyst with a constant surface composition.

Additional information

Authors: CLAVILIER J, C.N.R.S., Laboratoire d'Electrochimie Interfaciale, Meudon Principal (FR)
Bibliographic Reference: EUR 13207 FR (1991) 26 pp., MF, ECU 4, blow-up copy ECU 5
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