Characteristic Behavior of an Electron-Transfer Reaction across a Tributyl Phosphate Droplet/Water Interface: Micrometer Droplet-Size Effect
Characteristic Behavior of an Electron-Transfer Reaction across a Tributyl Phosphate Droplet/Water Interface: Micrometer Droplet-Size Effect
复制标题
磷酸三丁酯液滴/水界面上的电子转移反应的特征行为：微米级液滴尺寸效应
DOI：
10.1246/bcsj.71.1065
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发表时间：
1998
影响因子：
4
通讯作者：
N. Kitamura
中科院分区：
文献类型：
--
作者：
K. Chikama;K. Nakatani;N. Kitamura
采用激光捕获、显微光谱和电化学技术研究了磷酸三丁酯（TBP）液滴中的十甲基二茂铁与周围水相中的六氰合铁（III）之间的电子转移（ET）反应。界面ET速率常数（kobs）在> 5 μ m时与液滴半径（r）成反比，但在r <5 μ m时偏离kobs与r − 1之间的线性关系。的特征液滴尺寸效应是独立的TBP和水相之间的伽伐尼电位。根据微米级TBP液滴/水界面的物理性质对结果进行了讨论。
An electron-transfer (ET) reaction between decamethylferrocene in a single tributyl phosphate (TBP) droplet and hexacyanoferrate(III) in the surrounding water phase was investigated by laser trapping, microspectroscopic, and electrochemical techniques. The interfacial ET rate constant (kobs) was inversely proportional to the droplet radius (r) at > 5 μm, but deviated from a linear relationship between kobs and r−1 at r < 5 μm. The characteristic droplet-size effect was independent of the Galvani potential between the TBP and water phases. The results are discussed in terms of the physical properties of the micrometer-sized TBP droplet/water interface.