Ionic conductivity in dehydrated zeolites |
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Authors: | G. Kelemen G. Schön |
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Affiliation: | 1. Institut für Anorganische Chemie der Universit?t Essen, Schützenbahn 70, W-4300, Essen 1, Germany
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Abstract: | The ionic conductivity of pressed pellets of dehydrated synthetic offretite, cancrinite and zeolite A, with various alkali metal ions, was determined by low-frequency impedance spectroscopy. Experiments were carried out in the frequency range 10 Hz–10 MHz at temperatures from 100–600°C. The conduction activation energies range between 55 kJ mol?1 (Na-zeolite A) and 108 kJ mol?1 (Li-cancrinite). The best conductivity value obtained was that of Na-zeolite A with 2.9×10?3Ω?1cm?1 at 600°C. |
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