Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10269102 | Electrochimica Acta | 2011 | 6 Pages |
Abstract
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 0.007Â m2Â gâ1Â cycleâ1, compared to a value of 0.011Â m2Â gâ1Â cycleâ1 for Pt/C.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Niancai Cheng, Shichun Mu, Xiaojing Chen, Haifeng Lv, Mu Pan, Peter P. Edwards,