高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (12): 1847.

• 研究简报 • 上一篇    下一篇

低热固相反应法制备纳米LiCoO2的研究(Ⅰ)

夏熙, 努丽燕娜, 郭再萍   

  1. 新疆大学化学系, 乌鲁木齐 830046
  • 收稿日期:1999-01-25 出版日期:1999-12-24 发布日期:1999-12-24
  • 通讯作者: 夏熙,男,68岁,教授.
  • 作者简介:夏熙,男,68岁,教授.

Studies of Nanophase LiCoO2Synthesized by Solid State Reaction with Low Heating Temperature(Ⅰ)

XIA Xi, NULI Yan-Na, GUO Zai-Ping   

  1. Department of Chemistry, Xinjiang University, Urumqi 830046, China
  • Received:1999-01-25 Online:1999-12-24 Published:1999-12-24

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关键词: 纳米微粒, 低热固相反应, LiCoO2

Abstract: Nanophase LiCoO2was synthesized by solid-state reaction with low heating temperature, i.e. the reactants Co(Ac)2·4H2O and LiOH·H2O in the appropriate molar ratio(1:1) were mixed and ground in agate mortar, then calcined. The samples obtained were characterized by XRD and IR methods. The phenomena during synthesizing are discussed by TG/TDA analysis, and the optimum temperature of heating was chosen. The BET and ICP results suggest that the sample has a large specific surface(54.29m2/g), a low quantity of impurity, thus it may be a good battery material. The nanophase-LiCoO2samples produced have good cyclic performance and a higher working voltage plateau(3.9 V).

Key words: Nanophase particle, Solid-state reaction with low heating temperature, LiCoO2

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