一种确定固相反应机理函数的新方法——固态草酸镍(Ⅱ)二水合物脱水过程的非等温动力学  

A NEW METHOD DETERMINING MECHANISM FUNCTION OF SOLID STATE REACTION * -THE NON ISOTHERMAL KINETIC OF DEHYDRATION OF NICKEL(Ⅱ) OXALATE DIHYDRATE IN SOLID STATE

作　　者：潘云祥[1] 管翔颖[1] 冯增媛[1] 李秀玉[1] 吴衍荪[1] 

机构地区：[1]天津师范大学化学系

出　　处：《无机化学学报》1999年第2期247-251,共5页Chinese Journal of Inorganic Chemistry

基　　金：天津市教委重点学科资助项目

摘　　要：０序有关典型的草酸盐热分解反应动力学特点的文章相继报道过［１］，它们大多着眼于反应体系在升温过程中物理性质（如体积、表面特征等）的变化，以及对热分解反应的温度区间和分解产物的确定。近年来，有人尝试对草酸盐热分解反应的机理进行确证。广泛采用的方法是Ｃｏ...The dehydration of nickel(Ⅱ) oxalate dihydrate in solid state was investigated by TG DTA techniques. On the basis of Coats Redfern′s and Ozawa′s integral equations, the double extrapolate method was suggested, i.e.heating rate Φ and proportion weight loss of a sample α were extrapolated to zero, respectively. Using comparision E Φ→0 with E α→0 the kinetic mechanism was concluded to be nuclear producing and growing process (n=1.5) . The intergral function of the mechanism is [-ln(1- α )] 1/1.5 and the corresponding kinetic parameters were determined.

关 键 词：动力学 草酸镍 二水合物 热分解 脱水 

分 类 号：O614.813[理学—无机化学]