无机化学学报

CoC₂O₄·2H₂O在空气中的热分解动力学研究

Kinetics for Thermal Decomposition of CoC₂O₄·2H₂O in Air

作者	单位
从长杰	武汉大学化学与分子科学学院，武汉 430072
易同寅	武汉大学纳米科学和技术研究中心，武汉 430072
洪建和	武汉大学化学与分子科学学院，武汉 430072
陶海波	武汉大学化学与分子科学学院，武汉 430072
张克立	武汉大学化学与分子科学学院，武汉 430072 武汉大学化学化工研究所，武汉 430072

摘要:

关键词: CoC₂O₄·2H₂O TG-DTA DSC XRD 热分解动力学

基金项目:

Abstract: The thermal decomposition processes in solid state CoC₂O₄·2H₂O have been studied in air using TG/DTA, DSC and XRD techniques. TG/DTA, DSC curves showed that the decomposition proceeded through two well-defined steps in air. Mass loss of the thermal decomposition of CoC₂O₄·2H₂O was in good agreement with the theoretica1 one. XRD showed that the final product of the thermal decomposition was Co₃O₄. The activation energies were calculated through the ASTM E698 and Flynn-Wall-Ozawa (FWO) methods, and the possible conversion functions had been estimated through the multiple-linear regression method. The activation energies for the two steps decomposition of CoC₂O₄·2H₂O were 140.18 kJ·mol^-1 and 134.61 kJ·mol^-1, respective1y.

Keywords: CoC₂O₄·2H₂O TG-DTA DSC XRD thermal decomposition kinetics

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从长杰,易同寅,洪建和,陶海波,张克立.CoC₂O₄·2H₂O在空气中的热分解动力学研究[J].无机化学学报,2006,22(2):379-383.

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