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Hydrated and dehydrated zeolites MA (where M=Li, Na and K) with LTA structure have been studied by impedance spectroscopy with scanning frequency from 1Hz to 1MHz at high pressure up to 4.5GPa and high temperature up to 250°C. Anomalous increase in electrical AC conductivity at about 1.5–2GPa observed in hydrated zeolites is associated with changes in crystalline structure leading to the formation...
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