No Access Published Online: 17 February 2015
AIP Conference Proceedings 1576, 106 (2014);
more...View Contributors
  • Aneesh George
  • Jijimon K. Thomas
  • Annamma John
  • Sam Solomon
Zirconium oxide (ZrO2) and titanium dioxide (TiO2) are the important catalyst supports, since it has acidic and basic properties. The intermediate phase zirconium titanate ZrTi2O6, which is a solid solution with Zr:Ti ratio 1:2 has outstanding dielectric properties. The effects of doping of ZnO and CeO2 on the dielectric and electrical properties of ZrTi2O6 ceramic are investigated. On adding 0.5 wt% ZnO, the dielectric constant is increased but, on adding CeO2, the dielectric constant is decreased. The bulk density of pure sample sintered at 1530 °C is 91% of theoretical density while that of the doped samples sintered at 1450 °C is more than 94% of theoretical density. Scanning electron micrographs reveal that the samples are well sintered with minimum porosity. The semicircle behavior in the Cole-Cole plots at room temperature reveals that the samples are good ionic conductor. The induced impedance is reduced for doped samples and this can be used as a material for electrolyte in Solid Oxide Fuel Cell.
  1. © 2014 AIP Publishing LLC.