高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (11): 1421.

• 论文 •    下一篇

超微粒Co3O4的合成与表征

王晓慧, 王子忱, 李熙, 徐宝琨, 赵慕愚   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1990-10-10 出版日期:1991-11-24 发布日期:1991-11-24
  • 通讯作者: 王子忱

The Preparation of Co3O4Ultrafine Particles

Wang Xiao-hui, Wang Zi-chen, Li Xi, Xu Bao-kun, Zhao Mu-yu   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1990-10-10 Online:1991-11-24 Published:1991-11-24

摘要: 本文用胶溶法合成了纳米级超微粒Co3O4,初步探讨了合成Co3O4超微粒的最佳实验条件,对产品的结构性能测试表明,所得超微粒子Co3O4粒度均匀,平均粒度为4.0nm.200℃热处理时,产品为无定形,在许多有机溶剂中具有良好的分散性和透明性;400℃热处理得到立方Co3O4纳米晶体,平均粒度为6.0nm,热稳定性好。

关键词: 超微粒, 四氧化三钴, 胶溶法

Abstract: Co3O4ultrafine particles (UFP) were prepared from CoCl2by colloidal chemical method. The most favorable experiment conditions for the preparation of Co3O4UFP were studied. XRD, DTA, TG, IR and TEM examinations were used to discribe the characteristic of the sample. The spherical amorphous ultrafine Co3O4product has average diameters of 4. 0 nm, with good dispersity and transparency in many organic solvents. When heat-treated at 800 Kfor 3 hours, cubic crystal Co3O4UFPcan be obtained, the average crystal grain size is 6. 0 nm.

Key words: Is Ultrafine particle, Co3O4, Colloidal chemical method

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