Abstract
A potent catalyst, platinum nanoparticles (Pt-NPs) supported on titanium substrate (Pt-NPs/Ti), was prepared. The morphology and surface analysis of Pt-NPs/Ti electrodes were investigated using scanning electron microscopy and energy dispersive X-ray spectroscopy respectively. The results indicate that Pt-NPs are homogeneously deposited on the surface of titanium plates. Electrochemical characteristics of formic acid oxidation on Pt-NPs/Ti electrodes were investigated via cyclic voltammetric in mixed 0·1M formic acid and 0·1M H2SO4 solutions. The results were compared to those at a polycrystalline smooth platinum electrode. It was found that the electrocatalytic oxidation of formic acid on the Pt-NPs/Ti electrode increases the rate of formic acid electro-oxidation several times larger than a smooth platinum electrode and confirmed the better electrocatalytic activity and stability of Pt-NPs/Ti electrodes.
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