Development of Diiron Complex-modified Electrode using Ionic Liquid

采用自组装单分子膜技术制备了磷型离子液体修饰的金电极。将二铁络合物引入离子液体修饰电极中。IR-RAS和电化学测试证实了二铁络合物的固定化。从其在O2条件下氧化还原行为的变化来看，离子液体修饰电极上的二铁络合物能够电催化还原O2。由转环-圆盘电极测量，在含有二铁络合物的离子液体电极上发生了两个过程(氧的2e^-和4e^-还原)。

A phosphonium-type ionic liquid-modified Au electrode was prepared by a self-assembled monolayer technique. A diiron complex was introduced into the ionic liquid-modified electrode. The immobilization of the diiron complex was confirmed by IR-RAS and electrochemical measurement. From the change of its redox behavior under O_2 condition, the diiron complex on the ionic liquid-modified electrode was able to reduce O_2 electrocatalytically. From rotating ring-disk electrode measurements, two processes (2e^- and 4e^- reduction of O_2) have occurred on the ionic liquid electrode containing diiron complexes.