Possibilities of prevention of formation of poisoning species on direct methanol fuel cell anodes

摘要

Porous unsupported Pd, Pt and Pt-Ru single phase alloy electrodes with different compositions viz. 9:1, 7:3 an 5:5 were prepared by NaBH_4 reduction method at room temperature. Extensive cyclic voltammetric investigations in different solutions solutions have been performed on these electrodes, as well as on smooth Electrodes, with the aim of identifying suitable combinations of electrode structure and electrolyte/methanol mixtures which can prevent the Formations of organic poisoning species.