化学学报 ›› 1994, Vol. 52 ›› Issue (10): 1007-1011. 上一篇    下一篇

研究论文

铜(Ⅱ)与N-(2-羟基乙基)水杨醛亚胺配合物热分解非等温动力学的研究

崔学桂;李晓燕   

  1. 山东大学化学系
  • 发布日期:1994-10-15

Studies on the non-isothermal kinetics of thermal decomposition of the complex of Cu(Ⅱ) with N-(2-hydroxyethyl) salicyldimino

CUI XUEGUI;LI XIAOYAN   

  • Published:1994-10-15

本文利用TG,DTG技术研究了铜(Ⅱ)与N-(2-羟基乙基)水杨醛亚胺配合物的热分解过程,借助TG,DTG曲线,采用Achar法和Coats-Redfern法, 通过对比不同机理时的动力学参数,推断出第一,三两步热分解反应的可能机理, 求出了该配合物热分解的非等温动力学数据.其机理为三维扩散,#D(圆柱形对称)

关键词: 反应机理, 晶体结构, 铜络合物, 微分法, 热重量分析, 热分解, 积分法, 羟基乙基水杨醛亚胺

The thermal decomposition of the complex of Cu(II) with N-(2-hydroxyethyl)salicyldimino and its kinetics were studied under the non-isothermal condition by TG and DTG techniques. The non-isothermal kinetic data were analyzed by means of Achar method and Coats-Redfern method. The possible reaction mechanism was suggested by comparing the kinetic parameters. The results show that this thermal decomposition is three-dimension diffusion, 3D(cylinder symmetry). The kinetic equation can be expressed as: da/dt = A譭-E/RT?/2[(1-a)-1/3-1]-1.

Key words: REACTION MECHANISM, CRYSTAL STRUCTURE, COPPER COMPLEX, DIFFERENTIATION, THERMOGRAVIMETRY, THERMAL DECOMPOSITION, INTEGRATION

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