Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (04): 567-570.doi: 10.3866/PKU.WHXB19920429

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Alternating Current Conductivity of α-Zirconium Phosphate Mixed with Fumed Silica in Hydrogen Form

Hao Jin-Ku; Zhao Wei-Jun; Fang Yan-Quan; Zhang Shu-Ji   

  1. Chemistry Department, Tianjin Normal University, Tianjin China; Chemistry Department, Nankai University, Tianjin 300071
  • Received:1991-03-20 Revised:1992-02-21 Published:1992-08-15
  • Contact: Zhao Wei-Jun

Abstract: α-layered zirconium phosphate was obtained by direct precipitation method. Composites formed by α-zirconium phosphate and fumed silica were prepared by dispersing predetermined molar ratios of polycrystalline α-zirconium phosphate and fumed silica in water. Admittance measurement of the samples was made in a sealed cell connected to a Hewlett Packard 4192A impedance analyzer in the frequency range from 5 Hz to 1 MHz. All of the samples with varing molar ratios of α-zirconium phosphate to silica at 60%, 40% relative humiditites have the same approximate Arrhenius activation energies, around 48 kJ·mol~(-1), that means the charge transport mechanism was maintained after mixing fumed silica into α-layered zirconium phosphate.

Key words: Zirconium phosphate, Silica, Conductivity