Electrocatalytic oxidation of methanol by platinum nanoparticles on nickel–chromium alloys

In this paper, a novel platinum nanoparticle electrode was prepared by electrodeposition from a platinum salt solution onto a nickel–chromium substrate. The electrocatalytic activity of the electrode for methanol oxidation was studied in acidic solution. Scanning electron microscope (SEM) and cyclic voltammetry were used to characterize the electrode surface and its electrochemical behavior. The results indicated that the platinum nanoparticle modified electrode improved the properties of the substrate material and enhanced the catalytic activity for methanol electrooxidation. The content of platinum metal on the electrode and the cost of the prepared catalyst were remarkably reduced.