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Degradation of Electrode and Membrane in Proton Exchange Membrane Fuel Cell After Water Electrolysis
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  • Journal title : Korean Chemical Engineering Research
  • Volume 52, Issue 6,  2014, pp.695-700
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2014.52.6.695
 Title & Authors
Degradation of Electrode and Membrane in Proton Exchange Membrane Fuel Cell After Water Electrolysis
Jeong, Jae-Hyeun; Shin, Eun-Kyung; Jeong, Jae-Jin; Na, Il-Chai; Chu, Cheun-Ho; Park, Kwon-Pil;
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 Abstract
Proton Exchange Membrane Fuel Cells (PEMFC) can generate hydrogen and oxygen from water by electrolysis. But the electrode and polymer electrolyte membrane degrade rapidly during PEM water electrolysis because of high operation voltage over 1.7V. In order to reduce the rate of anode electrode degradation, unsupported catalyst was used generally. In this study, Pt/C catalyst for PEMFC was used as a water electrolysis catalyst, and then the degradation of catalyst and membrane were analysed. After water electrolysis reaction in the voltage range from 1.8V to 2.0V, I-V curves, impedance spectra, cyclic voltammograms and linear sweep voltammetry (LSV) were measured at PEMFC operation condition. The degradation rate of electrode and membrane increased as the voltage of water electrolysis increased. The hydrogen yield was 88 % during water electrolysis for 1 min at 2.0V, the performance at 0.6V decreased to 49% due to degradation of membrane and electrode assembly.
 Keywords
PEMFC;Water Electrolysis;Hydrogen;MEA;Degradation;
 Language
Korean
 Cited by
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