Decomposition mechanisms and non-isothermal kinetics of LiHC2O4 center dot H2O

作者：Li Dong; Lian Fang^*; Chou Kuo Chih

来源：Rare Metals, 2012, 31(6): 615-620.

DOI：10.1007/s12598-012-0568-6

• apparent activation energy
• non-isothermal
• reaction mechanism
• thermal decomposition

The thermal decomposition process of LiHC2O4 center dot H2O from 30 to 600 degrees C was investigated by the thermogravimetric and differential scanning calorimetry (TG-DSC). The phases decomposited at different temperature were characterized by X-ray diffraction (XRD), which indicated the decompositions at 150, 170, and 420 degrees C, relating to LiHC2O4, Li2C2O4, Li2C2O4, and Li2CO3, respectively. Reaction mechanisms in the whole sintering process were determined, and-the model fitting kinetic approaches were applied to data for non-isothermal thermal decomposition of LiHC2O4 center dot H2O; finally, the kinetic parameters of each reaction were also calculated herein.

• 出版日期2012-12
• 单位北京科技大学