| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1281641 | International Journal of Hydrogen Energy | 2008 | 7 Pages |
Abstract
The damage caused by cell reversal during proton exchange membrane fuel cells (PEMFCs) operation with air starvation was investigated by a single-cell experiment. Samples from degraded membrane–electrode assemblies (MEAs) were characterized. The loss of electrochemical surface area of the cathode platinum was detected by in situ cyclic voltammetry, and platinum sintering was detected by transmission electron microscopy (TEM) analysis. Degradation at the anode was not detected in the chemical analysis of the anode catalyst layer of MEA samples by energy dispersive X-ray analysis (EDX) and TEM. An obvious decrease in the performance of PEMFC was observed in a sample degraded by cell reversal for 120 min.
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Authors
Akira Taniguchi, Tomoki Akita, Kazuaki Yasuda, Yoshinori Miyazaki,