Xiao-min Liu, Hui Yang. Kinetics of Thermal Decomposition of Lithium Hexafluorophosphate[J]. Chinese Journal of Chemical Physics , 2013, 26(4): 467-470. doi: 10.1063/1674-0068/26/04/467-470
Citation: Xiao-min Liu, Hui Yang. Kinetics of Thermal Decomposition of Lithium Hexafluorophosphate[J]. Chinese Journal of Chemical Physics , 2013, 26(4): 467-470. doi: 10.1063/1674-0068/26/04/467-470

Kinetics of Thermal Decomposition of Lithium Hexafluorophosphate

doi: 10.1063/1674-0068/26/04/467-470
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.20803035) and the Prior-ity Academic Program Development of Jiangsu Higher Education Institutions.
  • Received Date: 2013-03-12
  • With on-line coupled thermo-gravimetric analyzer-Fourier transform infrared spectrometer technique, the thermal decomposition of lithium hexafluorophosphate (LiPF6) and its gas evolution at inert environment (H2O<10 ppm) were studied under both non-isothermal and isothermal conditions. The results showed that the LiPF6 decomposition is a single-stage reaction with LiF as final residue and PF5 as gas product. In addition, its decomposi-tion kinetics was determined as 2D phase boundary movement (cylindrical symmetry) under both non-isothermal and isothermal conditions. Furthermore, the activation energy of LiPF6 decomposition was calculated as 104 and 92 kJ/mol for non-isothermal and isothermal con-ditions, respectively.
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Kinetics of Thermal Decomposition of Lithium Hexafluorophosphate

doi: 10.1063/1674-0068/26/04/467-470
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.20803035) and the Prior-ity Academic Program Development of Jiangsu Higher Education Institutions.

Abstract: With on-line coupled thermo-gravimetric analyzer-Fourier transform infrared spectrometer technique, the thermal decomposition of lithium hexafluorophosphate (LiPF6) and its gas evolution at inert environment (H2O<10 ppm) were studied under both non-isothermal and isothermal conditions. The results showed that the LiPF6 decomposition is a single-stage reaction with LiF as final residue and PF5 as gas product. In addition, its decomposi-tion kinetics was determined as 2D phase boundary movement (cylindrical symmetry) under both non-isothermal and isothermal conditions. Furthermore, the activation energy of LiPF6 decomposition was calculated as 104 and 92 kJ/mol for non-isothermal and isothermal con-ditions, respectively.

Xiao-min Liu, Hui Yang. Kinetics of Thermal Decomposition of Lithium Hexafluorophosphate[J]. Chinese Journal of Chemical Physics , 2013, 26(4): 467-470. doi: 10.1063/1674-0068/26/04/467-470
Citation: Xiao-min Liu, Hui Yang. Kinetics of Thermal Decomposition of Lithium Hexafluorophosphate[J]. Chinese Journal of Chemical Physics , 2013, 26(4): 467-470. doi: 10.1063/1674-0068/26/04/467-470

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