R. Manoharan et J. Prabhuram, Possibilities of prevention of formation of poisoning species on direct methanol fuel cell anodes, J POWER SOU, 96(1), 2001, pp. 220-225
Citations number
33
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Porous unsupported Pd, Pt and Pt-Ru single phase alloy electrodes with diff
erent compositions viz. 9:1, 7:3 and 5:5 were prepared by NaBH4 reduction m
ethod at room temperature.
Extensive cyclic voltammetric investigations in different solutions have be
en performed on these electrodes, as well as on smooth electrodes, with the
aim of identifying suitable combinations of electrode structure and electr
olyte/methanol mixtures which can prevent the formation of organic poisonin
g species.
Various electrochemical processes occurring in different potential regions
are discussed. Meanings of the appearance/disappearance of oxidation peaks
during both forward and backward sweeps on the present electrodes are point
ed out. (C) 2001 Elsevier Science B.V. All rights reserved.