Journal
POLYMER ELECTROLYTE FUEL CELLS 11
Volume 41, Issue 1, Pages 985-1007Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3635632
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Oxygen Reduction Reaction (ORR) currents have been measured under the potential range of an operating fuel cell (0.72-0.9 Volts) while keeping proton and oxygen transport-related overpotentials insignificant by testing with pure O-2, at 100% RH and at low current densities. Low potential points are achieved by reducing the platinum loading on the cathode and operating under sub-ambient (<101.3 kPa(abs)) pressure. The resulting experimental data are fit to Pt-oxide-coverage-dependent kinetics and the kinetic parameters extracted.
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