物理化学学报 >> 1985, Vol. 1 >> Issue (04): 349-356.doi: 10.3866/PKU.WHXB19850409

研究论文 上一篇    下一篇

Belousov-Zhabotinskii反应的研究——不同气氛下的振荡现象

张义学; 赵鸿喜; 臧雅茹; 肖杨; 赵学庄*   

  1. 南开大学化学系
  • 收稿日期:1984-12-25 修回日期:1985-02-15 发布日期:1985-08-15
  • 通讯作者: 赵学庄

RESEARCH ON THE BELOUSOV-ZHABOTINSKII REACTION——OSCILLATING PHENOMENA IN DIFFERENT ATMOSPHERES

Zhang Yixue; Zhao Hongxi; Zang Yaru; Xiao Yang; Zhao Xuezhuang*   

  1. Department of Chemistry, Nankai University, Tianjin
  • Received:1984-12-25 Revised:1985-02-15 Published:1985-08-15
  • Contact: Zhao Xuezhuang

PDF

1875

赞

摘要： 本文考察了不同气氛下, 丙二酸(MA)、邻菲罗啉亚铁离子和溴酸根之间反应的振荡现象。结果表明, 氢气与氮气对此反应的振荡基本上是惰性的, 而氧气对此反应的振荡有明显的影响。对氧的影响作了较仔细的研究, 观察到氧气氛下反应出现的一些特殊振荡波形。此外还对邻菲罗啉亚铁离子的离解造成的影响作了初步探讨。结合熟知的反应机理对实验结果进行了若干分析。

Abstract: In this paper oscillating phenomena of the Belousov-Zhabotinskii(BZ) reaction between malonic acid, ferrous o-phenanthroline and bromate ion have been studied. The effects of different atmospheres and the dissociation of ferrous o-phenanthroline ion in acid solution on the oscillation behavior of the reaction are investigated. Experiment results are interpreted in terms of the familiar reaction mechanism. The major results of this work are as follows:
(1) In order to investigate the effect of flow rate of gases on time of initiation (t_(in)), time period (t_p) and life time (t_l) of the oscillation, nitrogen and hydrogen were bubbled into the reaction system. The effect of stirring rate on t_(in), t_p and t_l in the same atmospheres was also studied. The experiment results are shown in Fig.1 These results show that in nitrogen or hydrogen atmosphere, flow rate and stirring rate do not obviously affect t_(in), t_p and t_l at fixed initial concentrations of various reagents. So it can be concluded that nitrogen and hydrogen are inert for the oscillation behavior of the BZ reaction.
(2) ...