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二硫化钴

二硫化钴
别名 二硫化亚钴
识别
CAS号 12013-10-4  ☒N
SMILES
 
  • [S-][S-].[Co+2]
性质
化学式 CoS2
摩尔质量 123.063 g·mol⁻¹
外观 黑色固体[1]
密度 4.27 g/cm3
熔点 650℃(分解)[2]
相关物质
其他阴离子 二硒化钴
其他阳离子 二硫化铁
二硫化镍
相关化学品 硫化钴
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二硫化钴是一种无机化合物化学式为CoS2,具有黄铁矿结构。二硫化钴在120K以下具有铁磁性,高于此温度时有顺磁性。

制备

二硫化钴可由单质直接化合得到:[2]

以无水、无氧的甲苯溶剂氯化钴和多硫化钠进行溶剂热反应:[3]

应用

二硫化钴可以用作Li/CoS2热电池,其优点是它在熔盐中溶解度小,且较二硫化铁有较高的分解温度和电导率。[4]

参考文献

  1. ^ 姚凤仪, 郭德威, 桂明德. 无机化学丛书 第五卷. 氧 硫 硒分族. 科学出版社, 2011. 3.12.8 过渡金属的硫化物. ISBN 978-7-03-030544-2
  2. ^ 2.0 2.1 陈立波. 高功率热电池用二硫化钴制备及性能测试研究观察. 中国化工贸易. 2014. 6(28):134
  3. ^ 段鹤, 郑毓峰, 张校刚 等. 溶剂热法合成CoS2纳米粉体. 机械工程材料. 2004. 28(5): 49-51
  4. ^ MASSET P J, GUIDOTTI R A. Thermal activated (“thermal”) battery technology:part IIIB. sulfur and oxide-based cathode materials[J]. Journal of Power Sources, 2008,178(1):456-466
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二硫化钴
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