Promising membrane materials based on strontium titanate |
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| Authors: | A A Murashkina E Yu Pikalova A K Demin |
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| Institution: | (1) Institute of High-Temperature Electrochemistry, Ural Division, Russian Academy of Sciences, Yekaterinburg, 620219, Russia |
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| Abstract: | Electroconductivity of SrTi1?x Fe x O3?δ(x = 0–0.5) specimens was studied by four-probe method. An opportunity was studied to produce hydrogen by high-temperature electrochemical conversion using SrTi0.5Fe0.5O3?δ as the membrane material of the best conductivity. The effective ambipolar conductivity values calculated for SrTi0.5Fe0.5O3?δ from the leakage experiment were found different from the ambipolar conductivity values calculated by the four-probe data processing because ambipolar conductivity corresponds to bulk transfer of complex oxide particles, taking no surface phenomena into account. |
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| Keywords: | combined conductors electrochemical converter hydrogen production ambipolar conductivity oxygen permeability |
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