Methanol electro-oxidation on mesocarbon microbead supported Pt catalysts

被引：129

作者：

Liu, YC ^{[1
]}

Qiu, XP ^{[1
]}

Huang, YQ ^{[1
]}

Zhu, WT ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

CARBON | 2002年 / 40卷 / 13期

关键词：

mesophase; carbon microbeads; catalyst supports; electrochemical properties;

D O I：

10.1016/S0008-6223(02)00115-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesocarbon microbeads (MCMB) as Pt catalyst supports were characterized by X-ray electron diffraction. thermal field emission scanning electron microscope and electrochemical analysis. MCMB with different pretreatment were used as the catalyst supports. The XRD patterns show the existence of Pt and the micrograph of SEM shocks Pt is absorbed uniformly on the surface of MCMB particles and the platinum grain size is ca. 3-5 nm. The effect of the pretreatment of the support on the catalyst performance of methanol electrooxidation was studied. Electrochemical analysis shows that MCMB are excellent candidates to be used as the support of catalyst for methanol electrochemical oxidation. The catalyst with MCMB boiled in KOH for 1 h as support exhibits a high catalytic activity during the electrooxidation of methanol. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：2375 / 2380

页数：6

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