Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 8, Issue 3, Pages A156-A158Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1854781
Keywords
-
Ask authors/readers for more resources
A 2700 h life test of a single proton exchange membrane fuel cell (PEMFC) with Nafion 112 membrane under nonsaturated humidification was conducted. In situ measurements of hydrogen crossover rate through the membrane and electrochemical active surface area (EAS) of Pt catalyst, in combination with cell polarization curves, were applied to investigate the degradation mechanism. A slow decrease of the EAS of Pt catalyst from 400 to 1900 h running was found to cause a slight voltage decay only at high current densities. However, a subsequent dramatic degradation of the membrane results in an accelerated collapse of the fuel cell. (C) 2005 The Electrochemical Society.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available