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http://dx.doi.org/10.9713/kcer.2012.50.5.778

Degradation Accelerated Stress Test of Electrode and Membrane in PEMFC  

Song, Jin-Hoon (Department of Chemical Engineering, Sunchon National University)
Kim, Sae-Hoon (HMC Eco Technology Research Institute)
Ahn, Byung-Ki (HMC Eco Technology Research Institute)
Ko, Jai-Joon (HMC Eco Technology Research Institute)
Park, Kwon-Pil (Department of Chemical Engineering, Sunchon National University)
Publication Information
Korean Chemical Engineering Research / v.50, no.5, 2012 , pp. 778-782 More about this Journal
Abstract
Until a recent day, degradation of PEMFC MEA (membrane and electrode assembly) has been studied, separated with membrane degradation and electrode degradation, respectively. But membrane and electrode were degraded coincidentally at real PEMFC operation condition. Therefore in this work, AST (Accelerated Stress Test) of MEA degradation was done at the condition that membrane and electrode were degraded simultaneously. There was interaction between membrane degradation and electrode degradation. Membrane degradation reduced the decrease range of catalyst active area by electrode degradation. Electrode degradation reduces increase range of the hydrogen crossover current and FER (Fluoride Emission Rate) by membrane degradation.
Keywords
PEMFC; Degradation; AST (Accelerated Stress Test); Membrane; Electrode;
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