Investigation of La9.33 Si6O26 Oxygen Ionic Conductor

材料科学技术（英文）, 2007, 23(5): 629-632.

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

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

3.Department of Materials Science and Engineering, School of Industrial Engineering and Management, Royal Institute of Technology, SE 100 44, Stockholm, Sweden

4.Structure Chemistry, Arrhenius Laboratory, Stockholm University, SE 10691, Stockholm, Sweden

Investigation of La9.33 Si6O26 Oxygen Ionic Conductor

Keywords： La9.33Si6O26

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.

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Investigation of La9.33 Si6O26 Oxygen Ionic Conductor

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