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Proton Conductivity Measurement Using A.C. Impedance Spectroscopy for Proton Exchange Membrane  

Lee, Chang Hyun (School of Chemical Engineering, College of Engineering, Hanyang University)
Park, Ho Bum (School of Chemical Engineering, College of Engineering, Hanyang University)
Lee, Young Moo (School of Chemical Engineering, College of Engineering, Hanyang University)
Publication Information
Korean Membrane Journal / v.6, no.1, 2004 , pp. 1-9 More about this Journal
Abstract
The impedance and the subsequent proton conductivity of Nafion$\^$/ membranes as standard samples were measured and compared via the two-probe method and the four-probe method using the prepared impedance measurement system. The different impedance behavior for the same membrane was observed at the fully hydrated state in the Nyquist impedance plot. The effect of the humidity and the temperature on the proton conduction through a membrane was investigated and compared with two different cell configurations.
Keywords
proton conductivity; A.C impedance spectroscopy; four-probe method; two-probe method;
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