Methanol electro-oxidation and direct methanol fuel cell using Pt/Rh and Pt/Ru/Rh alloy catalysts

被引：94

作者：

Choi, JH

Park, KW

Park, IS

Nam, WH

Sung, YE ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem Engn, Seoul 151744, South Korea

[2] Seoul Natl Univ, Res Ctr Energy Convers & Storage, Seoul 151744, South Korea

[3] Res Ctr Energy Convers & Storage, Dept Mat Sci & Engn, Grangju Inst Sci & Technol, Kwangju 500712, South Korea

来源：

ELECTROCHIMICA ACTA | 2004年 / 50卷 / 2-3期

关键词：

direct methanol fuel cell; methanol electro-oxidation; Pt/Rh; Pt/Ru/Rh; high surface area catalysts;

D O I：

10.1016/j.electacta.2004.01.109

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pt-based binary or ternary catalysts containing Rh for use as anodes in direct methanol fuel cells (DMFC) were synthesized by borohydride reduction method combined with freeze-drying. The resulting catalysts had a specific surface area of approximately 65-75 m(2)/g. X-ray diffraction (XRD) patterns indicated that the catalysts were well alloyed and the average size of alloy catalysts was confirmed by transmission electron microscopy (TEM). The Pt/Rh (2: 1) and Pt/Ru/Rh (5:4: 1) alloy catalysts showed better catalytic activities for methanol electrooxidation than Pt or Pt/Ru (1: 1), respectively. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：787 / 790

页数：4

共 17 条

[1] Methanol oxidation on Pt/Ru, Pt/Ni, and Pt/Ru/Ni anode electrocatalysts at different temperatures for DMFCs [J].