Publication | Open Access
The Triangular Voltage Sweep Method for Determining Double-Layer Capacity of Porous Electrodes
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1974
Year
Materials ScienceElectrical EngineeringChemical EngineeringEngineeringElectrode-electrolyte InterfaceDouble‐layer CapacityDistributed CapacityElectrochemical InterfaceEnergy StoragePorous ElectrodesElectrophysiologyElectrochemical CellElectrode ThicknessElectrode Reaction MechanismElectrochemistryElectrical InsulationDouble-layer Capacity
The effects of faradaic current and distributed capacity on the measurement of double‐layer capacity of porous nickel were analyzed as a function of electrode thickness and temperature. Faradaic current observed with electrodes at −46°C was negligible compared to results obtained at 22°C. Distributed capacity effects increased with electrode thickness and with decreasing temperature; the results agreed well with values predicted from a previously developed model. In the potential range of 0 to , the capacity based on the BET area of the electrode was about 30 µF/cm2.