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

被引：92
|
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
收藏
页码：787 / 790
页数：4
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