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在间歇釜中,以BrO_3~--H_2PO_2~--Mn~(2+)-Fe(phen)_3~(2+)-H_2SO_4为体系,本文首次设计了一个纯无机均相BZ类化学振荡体系,采用溴离子选择性电极和紫外可见分光光度计可分别观察到[Br~-],[Mn~(3+)]和[Fe(phen)_3~(3+)]的振荡现象、对振荡反应产物及总反应计量关系进行了分析,考察了反应物浓度和反应温度对体系振荡反应的影响,并由此计算得到振荡反应的表观活化能,研究了Cl~-,Br~-,Br_2,丙烯腈等因素对振荡反应的影响,并由此对振荡反应的控制机理作了探索.对体系中两种金属离子的作用进行了分析.在此基础上提出了一种在间歇釜中设计均相BZ类振荡反应的新方法.利用这一方法,不仅可以设计无机振荡反应,而且还可以设计一系列由氨基酸、多肽、糖类等具有生物功能的物质参与的化学振荡,有助于理解生物体内普遍存在的周期性现象.
In the batch reactor, a pure inorganic homogeneous BZ chemical oscillation system was designed for the first time in this paper using BrO_3 ~ --H_2PO_2 ~ - Mn ~ (2 +) - Fe (phen) _3 ~ (2 +) - H_2SO_4 as the system. The oscillations of [Br ~ -], [Mn ~ (3 +)] and [Fe (phen) _3 ~ (3+)] were observed by using bromine ion selective electrode and UV-visible spectrophotometer. The effects of reactant concentration and reaction temperature on the oscillatory reaction of the system were investigated. The apparent activation energy of the oscillating reaction was calculated. The effects of Cl ~ -, Br ~ -, Br_2 , Acrylonitrile and other factors on the oscillation reaction, and thus the control mechanism of the oscillation reaction were explored.The role of the two metal ions in the system were analyzed.On the basis of this proposed a batch reactor design A Novel Method for BZ-Like Oscillation in Homogeneous Phase Using this method, it is possible to design not only the inorganic oscillatory reaction but also a series of chemical oscillations involving biologically functional substances such as amino acids, peptides, sugars, etc. to help understand Ubiquitous cyclical phenomena in living organisms.