Kaminaga Akiko, Vanag Vladimir K, Epstein Irving R
Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454, USA.
J Chem Phys. 2005 May 1;122(17):174706. doi: 10.1063/1.1888386.
The Belousov-Zhabotinsky (BZ) reaction dispersed in water-in-oil aerosol OT (AOT) microemulsion has been studied at small radius R(d) of water nanodroplets (R(d) (nm) congruent with0.17omega,omega = [H(2)O][AOT] = 9). Stationary spotlike and labyrinthine Turing patterns are found close to the fully oxidized state. These patterns, islands of high concentration of the reduced state of the Ru(bpy)(3) (2+) catalyst, can coexist either with "black" reduction waves or, under other conditions, with the "white" oxidation waves usually observed in the BZ reaction. The experimental observations are analyzed with the aid of a new Oregonator-like model and qualitatively reproduced in computer simulations.
在水包油气溶胶OT（AOT）微乳液中分散的贝洛索夫-扎博廷斯基（BZ）反应已在水纳米液滴的小半径R(d)（R(d)（纳米）≈0.17ω，ω = [H₂O][AOT] = 9）下进行了研究。在接近完全氧化状态时发现了静止的斑点状和迷宫状图灵图案。这些图案，即Ru(bpy)₃(2+)催化剂还原态的高浓度岛，可以与“黑色”还原波共存，或者在其他条件下，与通常在BZ反应中观察到的“白色”氧化波共存。借助一个新的类俄勒冈模型对实验观察结果进行了分析，并在计算机模拟中进行了定性再现。
