Manuscript submitted January 13, 2003; revised manuscript received May 12, 2003. ... impregnating a proton-conducting ionomer in the catalyst active layer of the cathode of a polymer electrolyte membrane fuel cell ... We carried out impedance measurement on a system where air was fed to the cathode and developed an impedance model for ... Society Student Member. ** Electrochemical Society Active Member. *** Electrochemical Society Fellow. a#39; E- mail: ... Schematic illustration.
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