质子交换膜燃料电池
催化作用
阳极
电化学
化学工程
材料科学
氧化锡
纳米棒
锡
铂金
氧化物
降级(电信)
化学
无机化学
纳米技术
电极
冶金
物理化学
有机化学
工程类
电信
计算机科学
作者
Meiling Dou,Ming Hou,Dong Liang,Wenxian Lu,Zhigang Shao,Baolian Yi
标识
DOI:10.1016/j.electacta.2013.01.070
摘要
Tin oxide nanocluster (SnO2) with parallel nanorods was synthesized via a hard template method and explored as the anode catalyst support for proton exchange membrane fuel cells (PEMFCs). Single cell test demonstrated that SnO2 supported Pt catalyst (Pt/SnO2) exhibited comparable anode performance with conventional Pt/C. Electrochemical measurements showed that Pt/SnO2 exhibited significantly enhanced electrochemical stability than Pt/C under high potential electro-oxidation and potential cycling. The Pt/SnO2 catalyst reserved most of its electrochemically active surface area (ECA) under 10 h potential hold at 1.6 V while its ECA degradation rate was one order of magnitude lower than Pt/C under potential cycling between 0.6 and 1.2 V. Therefore, SnO2 nanocluster can be considered as a promising alternative anode catalyst support for PEMFCs.
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