Analysis of reaction–diffusion waves in the ferroin-catalysed Belousov–Zhabotinsky reaction
Analysis of reaction–diffusion waves in the ferroin-catalysed Belousov–Zhabotinsky reaction
复制标题
铁蛋白催化的 Belousov-Zhabotinsky 反应中的反应扩散波分析
DOI：
10.1039/a904994k
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
S. Scott
中科院分区：
文献类型：
--
作者：
A. Taylor;V. Gáspár;Barry R. Johnson;S. Scott
Oregonator 模型用于分析铁蛋白催化的 Belousov-Zhabotinsky 反应中的反应扩散波。铁蛋白还原的有效速率常数 kJ 的值由从暴露于空气、氮气或用有机玻璃盖密封的溶液获得的氧化催化剂的实验波曲线确定。发现受 O2 影响的系统中 kJ 值较低。分析了波速 c 对波剖面中铁蛋白浓度的依赖性。提出了一种根据目标引发周期 T 和 [Fe(III)] 之间的关系确定 kJ 的替代方法。还讨论了这些结果对“普遍色散关系”的影响。
The Oregonator model is used to analyse reaction–diffusion waves in the ferroin-catalysed Belousov–Zhabotinsky reaction. The value of the effective rate constant of ferriin reduction kJ is determined from experimental wave profiles of the oxidised catalyst obtained from solutions open to air, nitrogen or sealed with a perspex lid. The value of kJ is found to be lower in systems affected by O2. The dependence of the wave speed c on the concentration of ferriin in the wave profiles is analysed. An alternative method for the determination of kJ from a relationship between the period of target initiation T and [Fe(III)] is presented. The effect of these results on the ‘universal dispersion relation’ is also discussed.