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http://dx.doi.org/10.7316/KHNES.2012.23.2.125

Effects of Nafion Contents on the Performance of MEAs Prepared by Decal-Transfer Method  

Kim, Gyeong-Hee (Fuel Cell Research Center, Korea Institute of Science and Technology)
Cho, Eun-Ae (Fuel Cell Research Center, Korea Institute of Science and Technology)
Han, Jong-Hee (Fuel Cell Research Center, Korea Institute of Science and Technology)
Kim, Sung-Hyun (Dept. of Chemical & Biological Engineering, Korea University)
Eom, Kwang-Sup (Fuel Cell Research Center, Korea Institute of Science and Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.23, no.2, 2012 , pp. 125-133 More about this Journal
Abstract
Nafion ionomer located in electrode helps to increase the platinum utilization and proton conductivity. To achieve higher performance in PEMFCs, it is important an optimum Nafion content in the electrode. As the platinum loading and fabricated method depend on the optimum Nafion content. In this study, we have examined the interrelationship between platinum loading and Nafion content fabricated by decal transfer method. For electrodes with 0.25 and 0.4 mg/$cm^2$ Pt loading, best performance was obtained at 25 wt.% Nafion ionomer loading. It is also found that MEA with 0.25 mg/$cm^2$ Pt, the optimum Nafion content appears differently at low and high current density.
Keywords
PEMFC; Nafion contents; MEA; Pt loading; Decal-transfer method;
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