Investigation of La9:33Si6O26 Oxygen Ionic Conductor

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J Mater Sci Technol ›› 2007, Vol. 23 ›› Issue (05): 629-632.

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Investigation of La9:33Si6O26 Oxygen Ionic Conductor

Hong ZHANG, Zhicheng LI, Bill Bergman, Xiaodong ZOU

School of Materials Science and Engineering, Central South University, Changsha 410083, China...

Received:2006-11-13 Revised:2007-02-19 Online:2007-09-28 Published:2009-10-10
Contact: Zhicheng LI

Abstract

Abstract: La9:33Si6O26 oxygen ionic conductor was synthesized by solid state reaction method. Its structure was determined by single-crystal X-ray diffraction analysis at room temperature. The results showed that La9:33Si6O26 oxide has the apatite structure with space group P63/m. AC impedance measurements indicated that the oxides sintered in nitrogen have much higher conductivity than those sintered in air. The effects of grain boundaries on the conductivity were discussed.

Key words: La9:33Si6O26, Crystal structure, Oxygen ionic conductor, Conductivity

Hong ZHANG, Zhicheng LI, Bill Bergman, Xiaodong ZOU. Investigation of La9:33Si6O26 Oxygen Ionic Conductor[J]. J Mater Sci Technol, 2007, 23(05): 629-632.

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Investigation of La9:33Si6O26 Oxygen Ionic Conductor

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