Preparation of Ca Doped Lanthanum Chromite by Sol-Gel Process
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第3期
论文作者：Zang Bangqiang Li DeHui Ao Qing SUN Liangcheng LIU Ruwei
Key words：inorganic and metalloid materials; Sol-Gel; LaCrO3; nano-particles; rare earths;
Abstract: Super fine particles of calcium-doped lanthanum chromites were prepared by the sol-gel process in which the chelating agent was citric acid and the dispersant agent was ethylene glycol. The phase of fine particles was analyzed by XRD and the size and shape of the particles were investigated by TEM. The result shows that the nano-particles of La1-xCaxCrO3 can be obtained by the way of Ca2+ complex singly with citric acid and being calcined at 700 ℃.
Zang Bangqiang1，Li DeHui2，Ao Qing1，SUN Liangcheng1，LIU Ruwei1
(1.Collage of Material Science and Engineering, Shandong University, Jinan 250061, China;
2.Baotou Research Institute of Rare Earth, Baotou 014010, China)
Abstract:Super fine particles of calcium-doped lanthanum chromites were prepared by the sol-gel process in which the chelating agent was citric acid and the dispersant agent was ethylene glycol. The phase of fine particles was analyzed by XRD and the size and shape of the particles were investigated by TEM. The result shows that the nano-particles of La1-xCaxCrO3 can be obtained by the way of Ca2+ complex singly with citric acid and being calcined at 700 ℃.
Key words:inorganic and metalloid materials; Sol-Gel; LaCrO3; nano-particles; rare earths;
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