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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

A离子缺陷型钙钛矿La0.66TiO2.993的水热合成和表征

李宝华+; 郑文君; 庞文琴   

  1. +沈阳农业大学基础部; 长春110161; 吉林大学化学系水热合成开放实验室; 沈阳130023
  • 收稿日期:1996-11-28 修回日期:1997-02-17 出版日期:1997-12-20 网络出版日期:1997-12-20

Hydrothermal Synthesis and Characterization of Perovskite-Type La0.66TiO2.993 with A-Site Deficiency

LI Baohua+; ZHENG Wenjun; PANG Wenqin   

  1. Key Laboratotory of Inorganic Hydrothermal Synthesis; Department of Chemistry; Jilin University Changchun 130023 China; +Basic Course Department; Shenyang Agricultural University Shenyang 110161 China

  • Received:1996-11-28 Revised:1997-02-17 Published:1997-12-20 Online:1997-12-20

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摘要： 本文利用水热晶化法首次合成出正交钙钛矿结构的La0.66TiO2.993产物为约300nm粒径的多晶粉末，且有一定团聚现象．水热条件对合成的影响研究表明，最佳合成条件为：KOH／Ti＝80，La／Ti=0．7，［Ti］＝0．1mol·L-1，260℃下晶化7天。

关键词: 镧-钛复合氧化物, 水热合成, 反应条件

Abstract: Orthorhombic perovskite La0.66TiO2.993 was Synthesized by hydrothermal method. The particle size of the product was about 300nm, and had agglomeration in some degree. The effect ofhydrothermal conditions on the syntheses was inverstigated. The results indicated that the optimum KOH/Ti, La/Ti, [Ti], temperature and reaction time are 80, 0.7, 0.1mol·L-1,260℃ and 7days, respectively.

Key words: lanthanium-titanium complex oxide, hydrothermal synthesis, reaction condition