Carbonate coprecipitation synthesis of Sr- and Mg-doped LaGaO3

被引：17
|
作者：
Cristiani, Cinzia [1 ]
Zampori, Luca [1 ]
Latorrata, Saverio [1 ]
Pelosato, Renato [1 ]
Dotelli, Giovanni [1 ]
Ruffo, Riccardo [2 ]
机构：
[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim G Natta, I-20133 Milan, Italy
[2] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy
来源：
MATERIALS LETTERS | 2009年 / 63卷 / 21期
关键词：
Coprecipitation synthesis; LSGM; SOFC; Phase composition; Electrical conductivity; OXIDE-ION CONDUCTOR; ELECTRICAL-PROPERTIES; LANTHANUM GALLATE; FUEL-CELLS; PEROVSKITE; ELECTROLYTE; PERFORMANCE;
D O I：
10.1016/j.matlet.2009.06.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A carbonate coprecipitation synthesis, simple and easily scalable to industrial level, has been successfully applied to produce Sr- and Mg-doped LaGaO3. The thermal evolution shows that the main perovskite phase crystallizes already at 1000 degrees C. Samples sintered at 1400 degrees C for 10 h have a relative density of 93% and an electrical conductivity of 7.7 . 10(-2) S cm(-1) at 800 degrees C, similar to the one reported for solid state synthesis. The presence of small amounts of secondary phases (about 17%) such as LaSrGaO4 and LaSrGa3O7 does not seem to deeply affect the electrical properties of the final material. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1892 / 1894
页数：3
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