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http://dx.doi.org/10.9713/kcer.2019.57.4.507

Comparison of Measurement Method of Hydrogen Permeability in Proton Exchange Membrane Fuel Cell  

Oh, So-Hydong (Department of Chemical Engineering, Sunchon National University)
Yun, Jeawon (Department of Chemical Engineering, Sunchon National University)
Lee, Daewoong (Department of Chemical Engineering, Sunchon National University)
Park, Kwonpil (Department of Chemical Engineering, Sunchon National University)
Publication Information
Korean Chemical Engineering Research / v.57, no.4, 2019 , pp. 507-511 More about this Journal
Abstract
Hydrogen permeability is widely used to evaluate the polymer membrane durability of polymer electrolyte fuel cells (PEMFC). Linear sweep voltammetry (LSV) is mainly used to measure hydrogen permeability easily. There are many differences in LSV measurement method among researchers, and it is often difficult to compare the results. Therefore, in this study, we tried to confirm the accuracy by comparing the hydrogen permeability of LSV method and gas chromatograph which is difficult to measure but accurate value. The LSV method used the DOE and NEDO methods. When the hydrogen permeability was measured by varying the temperature and the relative humidity, the DOE LSV method showed an accuracy of less than 5% in the error range compared with the GC method. In the NEDO LSV method, the error was reduced when the hydrogen permeation current density was determined at the current value of 0.3 V as the DOE method.
Keywords
PEMFC; Hydrogen permeability; Linear Sweep Voltammetry; Gas chromatograph; DOE;
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Times Cited By KSCI : 3  (Citation Analysis)
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