Enhanced life of proton exchange membrane fuel cell catalysts using perfluorosulfonic acid stabilized carbon support

被引：25

作者：

Cheng, Niancai ^{[1
]}

Mu, Shichun ^{[1
,2
]}

Chen, Xiaojing ^{[1
]}

Lv, Haifeng ^{[1
]}

Pan, Mu ^{[1
]}

Edwards, Peter P. ^{[2
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Univ Oxford, Dept Chem, Inorgan Chem Lab, Oxford OX1 3QR, England

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 05期

基金：

美国国家科学基金会;

关键词：

Fuel cell; Catalyst; Catalyst durability; Perfluorosulfonic acid stabilized carbon; OXYGEN-REDUCTION; PTRU NANOPARTICLES; POLYMER; ELECTROCATALYSTS; NANOTUBES; OXIDATION; METHANOL; ELECTRODES; ALLOY;

D O I：

10.1016/j.electacta.2010.11.075

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report a new and simple solution to increase life of Pt/C catalysts using the proton-conducting polymer (perfluorosulfonic acid, PFSA) stabilized carbon support (denoted these catalysts as Pt/NFC catalysts) as compared to conventional Pt/C catalysts commonly used in PEM fuel cells. A high catalytic activity of the catalyst is observed by both CV (cyclic voltammetry) and ORR (oxygen reduction reaction) measurements. Especially, our own catalysts have a 60% better life as compared to Pt/C under electrochemically accelerated durability test conditions. The loss rate of electrochemical active area (ECA) for Pt/NFC catalysts is only 0.007 m(2) g(-1) cycle(-1), compared to a value of 0.011 m(2) g(-1) cycle(-1) for Pt/C. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2154 / 2159

页数：6

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