Ni nanoparticle modified graphite electrode for methanol electrocatalytic oxidation in alkaline media

Abstract

Ni nanoparticles with an electroless procedure were deposited on the graphite rod, and the performance of the proposed electrode was evaluated for electrocatalytic oxidation of methanol in alkaline media. The structure and morphology of the electrode surface were examined with X-ray diffraction, energy dispersive X-ray analysis and scanning electron microscopy techniques. Voltammetric and amperometric studies indicated that the onset potential of the methanol oxidation is low (0.42 V) and the electrode stability is good. In addition to these advantages, due to ease of preparation and low cost, it can be used as an anode in methanol fuel cells.