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Characteristics of Electrode Poisoning by Carbon Monoxide and/or Hydrogen Sulfide in the Anode Feed of Polymer Electrolyte Fuel Cells as Analyzed by AC Impedance Spectroscopy
Technical Paper
2004-01-1467
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The results of this study make clear the characteristics of electrode performance deterioration in terms of cell voltage reduction in polymer electrolyte fuel cells (PEFCs) caused by the presence of certain quantities of carbon monoxide and/or hydrogen sulfide in the anode feed. AC impedance measurements of the anode and cathode potentials revealed that both electrode potentials showed deterioration in the presence of each type of poisoning gas. This suggests that the poisoning gases permeated the electrolyte membrane and transferred to the cathode, causing performance deterioration by poisoning the catalyst. In addition, AC impedance measurements indicated that the presence of hydrogen sulfide in the anode feed increased the membrane impedance, thus implying some poisoning effect even on the electrolyte membrane.
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Authors
Topic
Citation
Takagi, Y., Nakatani, F., Okamoto, M., Shimizu, T. et al., "Characteristics of Electrode Poisoning by Carbon Monoxide and/or Hydrogen Sulfide in the Anode Feed of Polymer Electrolyte Fuel Cells as Analyzed by AC Impedance Spectroscopy," SAE Technical Paper 2004-01-1467, 2004, https://doi.org/10.4271/2004-01-1467.Also In
Advanced Powertrains on CD-ROM from the SAE 2004 World Congress
Number: SP-1836CD; Published: 2004-03-08
Number: SP-1836CD; Published: 2004-03-08
References
- Nakatani F. Hikita S. Shimizu T. Yamane K. Takagi Y. Proc. of the 2002 Autumn Scientific Lecture Series of JSAE 2002
- Zawodzinski T. et al. Los Almos National Laboratory Data
- Ciureanu M. Roberge R. J. of Phys. Chemi. B2001 105 3531 3539