高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (11): 1542.

• 论文 • 上一篇    下一篇

柠檬酸盐法合成钙钛矿型复合氧化物纳米固体材料LaFeO3

李熙1, 赵慕愚1, 王子忱1, 徐宝琨2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 吉林大学电子科学系
  • 收稿日期:1990-12-20 出版日期:1991-11-24 发布日期:1991-11-24
  • 通讯作者: 李熙
  • 基金资助:

    国家教育委员会博士点基金

Synthesis of Perovskite-type Nanocrystalline Material Complex Oxide LaFeO3by Citrate Process

Li Xi1, Zhao Mu-yu1, Wang Zi-chen1, Xu Bao-kun2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Department of Electronic Science, Jilin University
  • Received:1990-12-20 Online:1991-11-24 Published:1991-11-24

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摘要： 纳米固体材料(或称毫微晶材料)是近几年发展起来的新兴材料,这是由尺寸为纳米数量级(通常粒径<10～15nm)的微晶颗粒聚集而成的块状或者薄膜人工固体,其原子排列状态既不同于传统的晶态、非晶态,又不同于尺寸为纳米数量级的超微粒,其结构特点使该材料具有与传统材料极不相同的特殊性能。

关键词: 铁酸镧, 纳米晶体, 合成

Abstract: The precursors of LaFeO3were prepared by cifrnle process and nanocrystals of LaFeO3were synthesized by a solid phase reaction at 400-500℃ for 2 h. The nanocrystalline material of LaFeO3was obtained at 0. 5 GPa. The characterization of the samples was carried out by XRD and TEM. The size of the crystals is about 12. 4 nm by TEM. The diffracted X-ray intensity of the compact sample was attributed to the contribution from the LaFeO3nanocrystals and the interfaces.

Key words: Lanthanum ferrite, Nanocrystalline, Synthesis

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