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Min-Ju Choo, Keun-Hwan Oh, Prof. Hee-Tak Kim and Prof. Jung-Ki Park Modulated Ionomer Distribution in the Catalyst Layer of Polymer Electrolyte Membrane Fuel Cells for High Temperature Operation ChemSusChem 7

Version of Record online: 28 APR 2014 | DOI: 10.1002/cssc.201402015

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Ionomer distribution modulation: A series of new catalyst layers for high temperature operation was fabricated through a simple poly(ethylene glycol) addition and leaching process. The ionomer domain was expanded by poly(ethylene glycol) addition, resulting in an increase in the electrochemical active area and proton transport without loss in oxygen transport, at a fixed ionomer content.

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