Delayed Response of Interfacial Tension in Propagating Chemical Waves of the Belousov-Zhabotinsky Reaction without Stirring
Delayed Response of Interfacial Tension in Propagating Chemical Waves of the Belousov-Zhabotinsky Reaction without Stirring
复制标题
不搅拌下 Belousov-Zhabotinsky 反应化学波传播中界面张力的延迟响应
DOI：
10.1021/jp4079458
复制
发表时间：
2013
期刊：
影响因子：
3.3
通讯作者：
Masanori Fujinami
中科院分区：
文献类型：
--
作者：
Ryo Tanaka;Tomonori Nomoto;Taro Toyota;Hiroyuki Kitahata;Masanori Fujinami
采用准弹性激光散射法对毛细管波频率进行监测，在不搅拌的情况下，对基于铁配合物催化剂的Belousov-Zhabotinsky反应中传播化学波的界面张力进行了时间分辨测量。当反应在液/液界面上进行时，发现界面张力相对于吸收的延迟响应与配体有关。这种行为归因于疏水金属催化剂的吸附活性差异。考虑平衡吸附速率常数的模型也再现了延迟时间和界面张力的增加。
Time-resolved measurements of the interfacial tension of propagating chemical waves of the Belousov–Zhabotinsky reaction based on the iron complex catalysts were carried out without stirring by monitoring the frequency of capillary waves with the quasi-elastic laser scattering method. A delayed response of the interfacial tension with respect to absorption was found with the delay being ligand-dependent when the reaction was conducted at a liquid/liquid interface. This behavior is attributed to differences in adsorption activity of the hydrophobic metal catalyst. The delay time and the increase in interfacial tension were also reproduced by a model considering the rate constants of equilibrium adsorption.