Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 157, Issue 3, Pages B409-B414Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3284646
Keywords
electrochemical electrodes; impurities; organic compounds; proton exchange membrane fuel cells; voltammetry (chemical analysis)
Funding
- U.S. Department of Energy [DE-FG36-07GO17020]
Ask authors/readers for more resources
The effect of trace amounts of formic acid (HCOOH) in hydrogen fuel on proton exchange membrane fuel cell (PEMFC) performance is reported. Long-term stability tests (100 h), periodic cyclic voltammetry scans, and electrochemical impedance spectroscopy analyses are used to evaluate and characterize the effects of this impurity on fuel cell performance. The results show that trace amounts of HCOOH cause degradation in fuel cell performance and significantly contaminate the electrodes. Furthermore, full recovery from the contamination could not be achieved by applying pure hydrogen to the anode while operating the fuel cell. However, this degradation may also be caused by the coarsening or dissolution of Pt, in addition to any permanent effects of HCOOH contamination. Mechanisms of contamination of the electrodes and performance degradation of the PEMFC are also postulated.
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