偏磷酸钴

偏磷酸钴是一种无机化合物,化学式为Co(PO3)2,它是单斜晶系晶体,空间群C2/c(No.15),以二聚体Co2P4O12的形式存在,其中偏磷酸根离子为-O-P-O-相连的环状四聚体。[2]它可由磷酸二氢钴的热分解制得。[3]它在75 °C可以被氢气还原为Co2PP[4]它可用作电极材料。[5]

偏磷酸钴
识别
CAS号 14448-19-2  checkY
20669-72-1(二聚体)  checkY
性质
化学式 Co(PO3)2
摩尔质量 216.88 g·mol⁻¹
外观 粉色晶体
密度 3.46 g·cm−3(二聚体)[1]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

参考文献

  1. ^ Trojan, Miroslav; Mazan, Pavol; Mikulik, Pavel. Dicobalt cyclotetraphosphate as a thermally stable blue-violet anticorrosive pigment. 1988 CS 259734 B1.
  2. ^ A. Olbertz, D. Stachel, I. Svoboda, H. Fuess. Redetermination of the crystal structures of nickel cyclotetraphosphate, Ni2P4O12 and of cobalt cyclotetraphosphate, CO2P4O12. Zeitschrift für Kristallographie - New Crystal Structures. 1998-04, 213 (1-4): 255–256 [2021-11-29]. ISSN 2197-4578. doi:10.1524/ncrs.1998.213.14.255. (原始内容存档于2021-11-29). 
  3. ^ M. Trojan, D. Brandová, Z. Šolc. Reaction of formation of c-Co2P4O12, a study using thermalanalysis methods. Thermochimica Acta. 1985-04, 85: 99–102 [2021-11-29]. doi:10.1016/0040-6031(85)85539-8. (原始内容存档于2018-06-15) (英语). 
  4. ^ Hutter, Jean Claude. Action of hydrogen on phosphates (preparation of phosphorus at low temperature). Ann. chim. (Paris), 1953. 8: 450-497.
  5. ^ Deepak R. Patil, B. Koteswararao, Krishna Begari, Arvind Yogi, Mahmoud Moussa, Deepak P. Dubal. Cobalt Cyclotetraphosphate (Co 2 P 4 O 12 ): A New High-Performance Electrode Material for Supercapacitors. ACS Applied Energy Materials. 2019-04-22, 2 (4): 2972–2981 [2021-11-29]. ISSN 2574-0962. doi:10.1021/acsaem.9b00447. (原始内容存档于2021-11-29) (英语).