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http://dx.doi.org/10.9713/kcer.2018.56.2.151

Comparison of Hydrogen Crossover Current Density by Analysis Method of Linear Sweep Voltammetry(LSV) in Proton Exchange Membrane Fuel Cells  

Oh, Sohyeong (Department of Chemical Engineering, Sunchon National University)
Hwang, Byungchan (Department of Chemical Engineering, Sunchon National University)
Lee, Mooseok (Kolon Research Institute)
Lee, Donghoon (Kolon Research Institute)
Park, Kwonpil (Department of Chemical Engineering, Sunchon National University)
Publication Information
Korean Chemical Engineering Research / v.56, no.2, 2018 , pp. 151-155 More about this Journal
Abstract
Degree of membrane degradation in Proton Exchange Membrane Fuel Cells (PEMFC) is mainly evaluated by the hydrogen crossover current density. The hydrogen crossover current density is measured by linear sweep voltammetry (LSV), which differs from the DOE protocol and the NEDO protocol. In this study, two protocols were compared during PEMFC operation and accelerated stress test. In the LSV method by the DOE method, the scan rate change affects the hydrogen crossover current density, but the NEDO method does not affect the hydrogen crossover current density. In the course of 15,000 cycles of polymer membrane wet/dry cycle, the DOE method was sensitive to membrane degradation, but the NEDO method was less sensitive to membrane degradation than the DOE method.
Keywords
PEMFC; Membrane; Degradation; Linear Sweep Voltammetry; Accelerated Stress Test; DOE; NEDO;
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Times Cited By KSCI : 2  (Citation Analysis)
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