화학공학소재연구정보센터
Electrochimica Acta, Vol.174, 667-671, 2015
A facile method to prepare Pt/C/TiO2 nanotubes electrode for electro-oxidation of methanol
In this study, we prepared a Pt/C/TiO2 nanotubes (TiO2NTs) electrode by the facile pyrolysis of chloroplatinic acid and glucose on the TiO2NTs support simultaneously. By several characterization methods such as scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy, it was found that with the thermal decomposition of H2PtCl6 and glucose simultaneously, Pt nanoparticles appeared with small particle size and anchored on the surface of TiO2NTs with carbon. Cyclic voltammetry and chronoamperometry were used to evaluate the electrocatalytic activity and stability of the prepared electrodes toward the oxidation of methanol. The Pt/C/TiO2NTs electrode possesses a large electrochemically active surface area and exhibits enhanced electrocatalytic activity and better stability for methanol oxidation than the Pt/TiO2NTs electrode. The Pt/C/TiO2NTs electrode provides a new approach for improving the catalytic activity and stability of Pt nanomaterials in renewable energy applications. (C) 2015 Elsevier Ltd. All rights reserved.