Non-Kinetic Losses Caused by Electrochemical Carbon Corrosion in PEM Fuel Cells
This paper presented non-kinetic losses in PEM fuel cells under an accelerated stress test of catalyst support. The cathode with carbon-supported Pt catalyst was prepared and characterized with potential hold at 1.2 V vs. SHE in PEM fuel cells. Irreversible losses caused by carbon corrosion were evaluated using a variety of electrochemical characterizations including cyclic voltammetry, linear sweep voltammetry, electrochemical impedance spectroscopy, and polarization technique. Ohmic losses at the cathode with potential hold were determined using its capacitive responses. Concentration losses in PEM fuel cells were analyzed in terms of Tafel behavior and thin film/flooded-agglomerate dynamics.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1047388
- Report Number(s):
- PNNL-SA-85028; EB4209000
- Journal Information:
- International Journal of Hydrogen Energy, Journal Name: International Journal of Hydrogen Energy Journal Issue: 10 Vol. 37; ISSN 0360-3199; ISSN IJHEDX
- Country of Publication:
- United States
- Language:
- English
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