Direct methanol fuel cell: study of improved Pt-Ru anode materials

摘要

The electrocatalytic oxidation of methanol on Pt-Ru dispersed on carbon thin porous coating electrodes using an alternative preparation method was investigated. The EDX analysis confirmed that the simultaneous reduction of the precursor salts of Pt and Ru leads to the presence of these materials in the nominal composition initially calculated. The polarization data shows that, for all concentrations of methanol, Tafel plots present two slopes.