Localized growth of Pt on Pd as a bimetallic electrocatalyst with enhanced catalytic activity and durability for proton exchange membrane fuel cell

被引：13
|
作者：
Zhang, Weimin [1 ,2 ]
Wang, Meng [2 ]
Chen, Jun [2 ]
Romeo, Tony [2 ]
Harris, Andrew T. [1 ]
Minett, Andrew I. [1 ]
机构：
[1] Univ Sydney, Lab Sustainable Technol, Sch Chem & Biomol Engn, Sydney, NSW 2006, Australia
[2] Univ Wollongong, Intelligent Polymer Res Inst, AIIM Facil, Wollongong, NSW 2522, Australia
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2013年 / 34卷
关键词：
Pt-Pd; Bimetallic; Electrocatalyst; Fuel cell; OXYGEN REDUCTION; PT-ALLOY; NANOSTRUCTURES; CO;
D O I：
10.1016/j.elecom.2013.05.017
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Pt on Pd nanocatalyst with hollow interior structure was synthesized by a modified galvanic replacement method. The hollow nanoparticles with rough Pt surface on Pd layer (Pt-Pd) exhibit significantly higher electrochemically active surface area when compared to that of conventional hollow Pt nanoparticles, with remarkably enhanced oxygen reduction reaction activity and durability compared to those of as-synthesized hollow Pt catalysts and the E-TEK commercial Pt/C. Real-world application of the catalysts in a single fuel cell has been evaluated and found consistent with the electrochemical measurements. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：73 / 76
页数：4
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