苯甲酸钴的流变相反应法合成及热分解机制研究

Synthesis by Rheological Phase Reaction and Thermal Decomposition of Cobalt Benzoate

用流变相反应合成了苯甲酸钴,通过元素分析、红外光谱和X-射线粉末衍射表征了该配合物,系层状结构,属单斜晶系。用DTA、TG、红外光谱、质谱、X-射线衍射研究了它在氮气气氛中的热分解机理。苯甲酸钴在氮气气氛下,热分解分两步进行:第一步苯甲酸钴分解为碳酸钴和有机化合物,生成的有机化合物成分比较复杂,主要成分是三苯甲烷、二苯甲酮等;第二步碳酸钴进一步分解生成氧化钴和二氧化碳。

Cobalt benzoate was synthesized by rheological phase reaction. The complex was characterized by elemental analysis and IR. The mechanism of thermal decomposition of cobalt benzoate in N2 was studied by using TG, DTA, IR, MS and XRD. The thermal decomposition of cobalt benzoate in N2 proceeded in two stages. In the first step it decomposed to form COCO3 and organic compounds. The organic compounds are mainly triphenylmethane, benzophenone angl so on, then COCO3 decomposed further to form CoO and carbon dioxide.