高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (7): 1121.

• 论文 • 上一篇    下一篇

BZ反应系非理想性对化学振荡动力学区域的影响

华达银, 罗久里   

  1. 四川大学化学系, 成都, 610064
  • 收稿日期:1997-04-02 出版日期:1998-07-24 发布日期:1998-07-24
  • 通讯作者: 罗久里
  • 作者简介:华达银,男,28岁,博士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29673028)资助课题.

Effect of Nonideality on Chemical Oscillatory Dynamical Regime of Belousov-Zhabotinskii Reaction System

HUA Da-Yin, LUO Jiu-Li   

  1. Department of Chemistry, Sichuan University, Chengdu, 610064
  • Received:1997-04-02 Online:1998-07-24 Published:1998-07-24

PDF (PC)

被引次数

21

摘要： 基于Debye-Huckel强电解质溶液活度系数理论、反应速度的活化络合物理论以及三变量微分方程奇点理论,探讨了非理想性对BZ反应体系振荡动力学区域的影响。以Oregonator为模型建立了均匀体系非理想BZ反应的系统动力学方程,计算并绘制了化学振荡的临界"溴酸钠浓度-离子强度"阈值图谱,划分了不同的动力学区域,并进行了一系列实验研究,得到了与理论分析一致的结论.

关键词: 非理想性, BZ反应, Oregonator模型

Abstract: Based on the Debye-Hükel activity coefficient theory of electrolyte solution, the activated complex theory of reaction rate and the singular theory of three variables differential equation, a series of theoretic investigation of BZreaction reported in this paper is devoted to explore the influence of the nonideality on chemical oscillatory dynamical regime. Using the Oregonator Model, a systematic dynamics of the nonideal homogeneous BZ reaction system is proposed. The threshold of chemical oscillation is calculated and then the critical diagram "concentration of NaBrO3-ionic strength" has been drawn. By means of it the regime of oscillation could be fixed quantitatively. Aset of experiments has also been done. The results is in accordance with the theoretical conclusions.

Key words: Nonideality, BZ reaction, Oregonator model

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