Enhanced sodium ion conduction of highly dense bulk zeolite X prepared by hydrothermal hot-pressing

Highly dense bulk zeolite X with translucency was successfully fabricated by hydrothermal hot-pressing of zeolite powder at 150 degrees C. Densification was achieved by addition of a small amount of distilled water or a 1 mol/L NaOH solution. Enhanced sodium ion conduction was observed for the densified bulk ceramic bodies. The ion conductivities obtained were beyond 0.001 S/cm, and are comparable to those of practical solid electrolytes applied in electrochemical devices such as batteries and chemical sensors.

Automated summary

Highly dense and translucent bulk zeolite X was fabricated successfully by hydrothermal hot-pressing method. Densification was achieved by the addition of a small amount of distilled water or a 1 mol/L NaOH solution, resulting in enhanced sodium ion conduction.