Journal
FUEL CELLS
Volume 13, Issue 2, Pages 158-166Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/fuce.201200158
Keywords
Carbon Corrosion; Durability; MC-PEDOT Composite; PEFCs; Start-Stop Cycles
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Funding
- CSIR, New Delhi through New Millennium Indian Technology Leadership Initiative (NMITLI) program
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A composite of mesoporous carbon (MC) with poly(3,4-ethylenedioxythiophene) (PEDOT) is studied as catalyst support for platinum nanoparticles. The durability of commercial Pt/carbon and Pt/MC-PEDOT as cathode catalyst is investigated by invoking air-fuel boundary at the anode side so as to foster carbon corrosion at the cathode side of a polymer electrolyte fuel cell (PEFC). Pt/MC-PEDOT shows higher resistance to carbon corrosion in relation to Pt/C. Electrochemical techniques such as cyclic voltammetry (CV) and impedance measurements are used to evaluate the extent of degradation in the catalyst layer. It is surmised that the resistance of MC-PEDOT as catalyst support toward electrochemical oxidation makes Pt/MC-PEDOT a suitable and stable cathode catalyst for PEFCs.
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