有机-水溶剂体系中草酸锰结晶行为及其热分解特性的研究  

Crystallization Behavior and Thermal Decomposition Characteristics of Manganese(II) Oxalate in Organic-water Binary Solvent System

作　　者：贾志刚[1] 岳林海[1] 郑遗凡[2] 徐铸德[1] 

机构地区：[1]浙江大学化学系,杭州310027 [2]浙江工业大学化学工程与材料学院,杭州310014

出　　处：《无机化学学报》2007年第1期181-188,共8页Chinese Journal of Inorganic Chemistry

摘　　要：The mineral of manganese oxalate dihydrate was synthesized in aqueous and organic-water binary solvent system (OWBS), respectively. The samples were characterized by XRD and SEM. The results show that OWBS can effectively control the phase and morphology of manganese oxalate dihydrate. The distinction of thermal decompositon of monoclinic and orthogonal manganese oxalate dihydrate can be ascribed to the different linkage mode of manganese cation, oxalate anion and crystallized water in inter-molecules. The kinetic parameters of thermal decomposition were obtained by TG-DTA curves in various scan rates, and notably, porous manganese oxide was prepared from orthogonal manganese oxalate.The mineral of manganese oxalate dihydrate was synthesized in aqueous and organic-water binary solvent system （OWBS）, respectively. The samples were characterized by XRD and SEM. The results show that OWBS can effectively control the phase and morphology of manganese oxalate dihydrate. The distinction of thermal decompositon of monoclinic and orthogonal manganese oxalate dihydrate can be ascribed to the different linkage mode of manganese cation, oxalate anion and crystallized water in inter-molecules. The kinetic parameters of thermal decomposition were obtained by TG-DTA curves in various scan rates, and notably, porous manganese oxide was prepared from orthogonal manganese oxalate.

关 键 词：二水草酸锰 有机-水混合溶剂 多孔物质 热分解动力学 

分 类 号：O611.4[理学—无机化学]