Electron transfer between reactants ferric ion and decamethyferrocene located on NB/H2O interfaces by thin layer method
Electron transfer between reactants ferric ion and decamethyferrocene located on NB/H2O interfaces by thin layer method
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DOI：
10.1016/j.electacta.2005.05.006
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发表时间：
2005-10
影响因子：
6.6
通讯作者：
Xiuhui Liu;Lina Hu;Limin Zhang;Hongde Liu;Xiaoquan Lu
中科院分区：
文献类型：
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作者：
Xiuhui Liu;Lina Hu;Limin Zhang;Hongde Liu;Xiaoquan Lu
用薄层法测定了水相中亚铁离子与相邻水相中的十甲基二茂铁之间的电子转移反应速率常数。尽管总驱动力大幅增加，但与Fe 3 +-DMFe和Fe（CN）63−-DMFe两种反应体系相比，速率常数降低不到一个数量级。结果表明，由于水溶液中反应物的尺寸和对称性的影响，重组能可能是影响界面电子转移速率的主要因素。此外，还对薄膜厚度的影响进行了进一步的研究。
The rate constant of electron transfer reaction between ferrous ion in aqueous phase and decamethyferrocene located on the adjacent aqueous phase was measured by thin layer method, a simple protocol reported recently for studying electron transfer reaction at liquid/liquid interface. Despite this large increase in overall driving force, the rate constants decrease by less than an order of magnitude compared the two reaction systems of Fe3+–DMFe and Fe(CN)63−–DMFe. The results demonstrate that reorganization energy may be a dominating factor on the rate of electron transfer across the interface due to the effect of the size and symmetry of reactants in aqueous. In addition, the effect of thickness of the thin layers is investigated further.