IrPdRu/C as H2 Oxidation Catalysts for Alkaline Fuel Cells

被引：134
|
作者：
Wang, Hongsen [1 ]
Abruna, Hector D. [1 ]
机构：
[1] Cornell Univ, Baker Lab, Dept Chem & Chem Biol, Ithaca, NY 14853 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 20期
关键词：
ANION-EXCHANGE MEMBRANES; ROTATING-DISK ELECTRODE; HYDROGEN OXIDATION; OXYGEN REDUCTION; ELECTROCATALYSTS; EVOLUTION; RU; KINETICS; ACID;
D O I：
10.1021/jacs.7b02434
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
H-2 oxidation kinetics on Pt in alkaline media are very sluggish, being over 100 times slower than in acidic media, and thus, new and more active H-2 oxidation electrocatalysts must be developed in order to enable alkaline exchange membrane fuel cells (AEMFCs). In this Communication, we present a new type of catalysts carbon-supported IrPdRu nanoparticles as H-2 oxidation catalysts in alkaline media. These catalysts exhibit higher activity than Pt/C and Ir/C catalysts and are also quite stable. In particular, Ir3Ru7/C and Ir3Pd1Ru6/C catalysts are significantly more active and less expensive than Pt/C and Ir/C, and are thus promising new anode catalysts for alkaline fuel cell applications.
引用
收藏
页码：6807 / 6810
页数：4
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