Ionic conductance of Lithium Exchanged Phases in Amorphous and Crystalline Zirconium Titanium Phosphate.

Lithium exchanged phases of amorphous and crystalline zirconium titanium phosphate have been synthesized by an ion exchange technique. These materials have been characterized by elemental analysis (ICP-AES and AAS), spectral analysis (FTIR), thermal analysis (TGA) and X-ray diffraction studies. The conductance properties of these materials have been explored by measuring specific conductance at different temperatures in the range of 30-250 °C at 10 °C intervals, using impedance analyzer over a frequency range 1 Hz - 32 MHz at a signal level below 1 V. Lithium exchanged phases of amorphous and crystalline zirconium phosphate and titanium phosphate have also been synthesized under identical conditions, characterized and their conductance properties investigated for comparative studies. It is observed that, in all cases, conductivity decreases with increasing temperature. Conductance performance is discussed based on conductivity data and activation energy.