Studies on Electrocatalytic Performance of Titanium Oxide Electrode Modified with Pt Toward the Oxidation of Methanol

Abstract

Abstract: Electrocatalytic performance of the Pt-TiO_x /Ti electrode prepared with electrochemical reduction-oxidation method toward the oxidation of methanol has been studied. The experimental results showed that the Pt-TiO_x /Ti electrode has a high electrocatalytic activity and good stability for the electrocatalytic oxidation of methanol. By means of electrochemical, XPS, STMand in-situ FTIRtechniques, it was found that one reason for the electrode to exhibit an excellent performance is attributed to the high dispersion between nanosized Pt and TiO_x particles. The low adsorption ability of the intermediate derived from methanol, such as linearly adsorbed COspecies on the electrode surface due to the interaction between Pt and TiO_x , also results in the excellent performance.

Key words: Methanol, Pt-TiO_x/Ti electrode, Electrocatalytic oxidation

CLC Number:

O646

TrendMD:

YANG Hui, LU Tian-Hong, LIU Chang-Peng, LIU Jing-Hua, SUN Gong-Quan . Studies on Electrocatalytic Performance of Titanium Oxide Electrode Modified with Pt Toward the Oxidation of Methanol[J]. Chem. J. Chinese Universities, 2000, 21(8): 1283.

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Studies on Electrocatalytic Performance of Titanium Oxide Electrode Modified with Pt Toward the Oxidation of Methanol

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