Journal of The Electrochemical Society · 2006 · 93 citations · 45 references
EngineeringMaterials EngineeringMaterials ScienceElectrochemical EngineeringElectrochemistryMembrane ScienceElectrochemical CellsFuel Cell MaterialsFuel Cell MembranesFuel CellsImpedance SpectroscopyMembrane EngineeringCharge Transfer ResistanceFuel Cell Impedance SpectroscopyIn Situ Impedance MeasurementsMembrane PerformanceMembrane ResistanceProton Exchange Membrane Fuel CellsProton Exchange MembranesTemperature Dependence Of Cell Voltage
In this paper, temperature dependent performance of a Nafion 112-based proton exchange membrane (PEM) fuel cell was investigated at different temperatures, back pressure, and 100% relative humidity (RH). High cell performance of ca. at was obtained at 120°C. Cell voltage decreased when the temperature increased within the range of 80–20°C. An in situ ac impedance spectroscopy method under load was developed to diagnose the performance reduction. A semi-empirical treatment was initiated to obtain expressions for extinguishing the individual performance drops caused by reaction kinetics (charge-transfer resistance), membrane resistance, and mass-transfer limitation, respectively.
45
Comparison of high surface Pt/C catalysts by cyclic voltammetry
Alfonso Pozio, Alessia Cemmi, F. Cardellini et al. · Journal of Power Sources · 2002 · 901 citations