Effect of La Doped on the Conductivity of the Perovskite Type PbZrO3
DOI:
https://doi.org/10.11113/jt.v59.2582Keywords:
Perovskite, solid solution, interstitial ion, oxide ion electromotive forceAbstract
Electrochemical properties of Pb1-xLaxZrO3+x/2 with perovskite structure have been studied. The powdery Pb1-xLaxZrO3+x/2 has been prepared by solid-state reaction method. The X-ray diffraction analysis reveals that Pb1-xLaxZrO3+x/2 (x = 0.0-0.05) sintered at 900 ËšC was single phase structure. The electrical conductivity of the material has been investigated. By doping La at the lead site, the electrical conductivity of the Pb1-xLaxZrO3+x/2 system decreased. The undoped compound showed the highest electrical conductivity of ca. 10-3 S/cm. Electromotive Force (EMF) measurements of oxygen concentration cell confirm that the charge carrier of La doped PbZrO3 was the oxide ion.References
Tatsumi Ishihara, Hideaki Matsuda, Yusaku Takita. 1994. Doped LaGaO3 Perovskite Type Oxide as a New Oxide Ionic Conductor. J.Am. Chem. Soc. 116. 3801–3803.
Takao Esaka, Tetsuo Mina-ai, Hiroyasu Iwahara. 1992. Oxide Ion Conduction in the Solid Solution Based on the Scheelite-type Oxide PbWO4. Solid State Ionics. 57: 319–325.
Takao Esaka, Ryouchi Tachibana, Shigeomi Takai. 1996. Oxide Ion Conduction in the Sm-substituted PbWO4 Phases. Solid State Ionics. 92: 129–133.
Takao Esaka, S. S Che Abdullah. 2010. Oxide Ion Conduction in the Perovskite-type LaYO3 doped with ZrO2. Electrochemistry. 78(11): 907–911.
Stephen, J. Skinner. 2002. CeTaO4+δ (0.06≤δ≤0.17) as an Interstitial Oxide Ion Conductor. Solid State Ionics. 154–155: 325–329.
C. Punchmark, S. Jiansirisomboon, G. Rujijanagul, T. Tunkasiri. 2004. Effect of Sintering Temperatures on Phase Transition of Lead Zirconate Ceramics. Current Applied Physics. 4: 179–181.
Hiroshi Okamoto, Go Kawamura, Tetsuichi Kudo. 1983. Interpretation of the Electromotive Forces of Solid Electrolyte Concentration Cells During Carbon Monoxide Oxidation on Platinum. Journal of Catalysis. 82: 322–331.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.