Interfacial behaviour of various liquid electrode/β″-alumina systems |
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Authors: | M W Breiter B Dunn |
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Affiliation: | (1) General Electric Corporate Research and Development, PO Box 8, 12301 Schenectady, NY, USA;(2) Present address: Department of Materials Science, UCLA, 90024 Los Angeles, CA, USA |
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Abstract: | Three different liquid electrode/sodium-alumina interfaces were investigated. The NaNO3/-alumina interface displays ohmic behaviour although the resistance is somewhat larger than expected. The sodium/-alumina interface exhibits asymmetric resistance with respect to d.c. current flow. Cyclic voltammetry results suggest that a Na2O film is being modified electrochemically during the sweeps. When a sodium amalgam electrode is utilized, the film, if it is present, has very little effect. The asymmetric resistance is not observed and there is good agreement between d.c. and a.c. resistances after only a small amount of sodium deposition. |
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