硝酸二氨合银(Ⅰ)配合物的脱氨反应动力学机理研究

Non-isothermal Kinetics of the deamination of[Ag(NH_3)_2]NO_3

用非等温热重法研究了硝酸二氨合银(Ⅰ)配合物[Ag(N H3)2]N O3的脱氨反应机理。非等温热重数据通过ACHAR法和COATS-REDFERN法进行拟合,得到反应的微分动力学函数f(α)=3/2[(1-α)-1/3-1]-1,积分动力学函数g(α)=(1-2/3α)-(1-α)2/3,活化能E1=104.1991kJ/m ol,E2=20.0172kJ/m ol;指前因子A1=4.07×108/s,A2=4.94×108/s,动力学补偿效应方程lnA1=3.1633E1+30.395;lnA2=4.5939E2+43.

The deamination reaction of NO3 has been studied by non-isothermally TG method. The data from non-isothermally experiments were analyzed by ACHAR and COATS-REDFERN method. It was found that the integral kinetic equation and differential coefficient kinetic eqution for the deamination of NO3 are f(α)= 3/2[(1-α)-1/3-1]-1, g(α)=(1-2/3α)-(1-α)2/3,activation energy are E1=104.1991kJ/mol,E2=20.0172kJ/mol,pre-exponential factorA1=4.07×108/s,A2=4.94×108/s,and kinetic compensation effect equation lnA1=3.1633E1+30.395;lnA2=4.5939E2+43.537.