Studies on Promoting Catalysis of Sm3+ Towards Oxidation of Methanol on the Pt Electrode

Abstract

Abstract: Electrocatalytic performance of Sm³⁺ adsorbed on the smooth surface of Pt electrode toward the oxidation of methanol has been studied. The experimental results show that Sm³⁺ has a high promoting catalysis for electrocatalytic oxidation of methanol in electrolyte. According to the positive experimental data(cyclic voltammograms) and the theoretical analysis, one coordination complex Pt-Sm³⁺-CH₃OH may be formed and acted as a critical intermediate during the reaction of methanol oxidation. Some in-situ spectral characterizations are in the process to confirm the existence of the complex. The mechanism of promoting effect of Sm³⁺ toward the electrocatalytic oxidation of methanol was deduced.

Key words: Methanol, Electrochemical oxidation, Sm³⁺, Promoting catalysis

CLC Number:

O646

TrendMD:

DU Bing-Chen, LIU Jing-Hua, XUE Xin-Zhong, XU Wei-Lin, XING Wei, LU Tian-Hong, SANG Ge . Studies on Promoting Catalysis of Sm³⁺ Towards Oxidation of Methanol on the Pt Electrode[J]. Chem. J. Chinese Universities, 2004, 25(5): 917.

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Studies on Promoting Catalysis of Sm³⁺ Towards Oxidation of Methanol on the Pt Electrode

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