The effect of the magnitude of the oxygen partial pressure change in electrical conductivity relaxation measurements: oxygen transport kinetics in La0.5Sr0.5CoO3−δ
作者： S Wang
DOI: 10.1016/S0167-2738(01)00709-3
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摘要: Abstract The kinetics of oxygen transport in La 0.5 Sr CoO 3− δ were investigated using the electrical conductivity relaxation technique temperature range from 600°C to 700°C and with partial pressures 0.01 1.0 atm. effects pressure on chemical diffusivity oxygen, D chem , surface exchange coefficient, k by systematically changing initial ( p 1 ) final 2 pressures. Results showed that for switches / >20, a linear model is no longer valid. dependence was determined.
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