Abstract
Here we report the study and use of Pt-Ni catalysts deposited on the titania nanotubed surface as electrocatalysts for methanol oxidation. The nanostructured Pt(Ni)/TiO2-NTs electrocatalysts with different Pt loadings were fabricated by electroless deposition of Ni onto the TiO2-NTs surface and its subsequent partial displacement by Pt upon immersion into the H2PtCl6 solution. The surface morphology and composition of the catalysts were examined using scanning electron microscopy and energy dispersive X-ray spectroscopy. The electrocatalytic activity of these catalysts was evaluated towards the oxidation of methanol by means of cyclic voltammetry, chronoamperometry. The fabricated nanostructured Pt(Ni)/TiO2-NTs catalysts exhibit an enhanced electrochemical activity towards electrochemical oxidation of methanol as compared to that of pure Pt electrode.
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