Molecular films of water-miscible ionic liquids formed on glassy carbon electrodes: characterization and electrochemical applications.
Molecular films of water-miscible ionic liquids formed on glassy carbon electrodes: characterization and electrochemical applications.
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DOI：
10.1021/la051089v
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发表时间：
2005-08
期刊：
影响因子：
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通讯作者：
Ping Yu;Yuqing Lin;Ling Xiang;L. Su;Jun Zhang;L. Mao
中科院分区：
文献类型：
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作者：
Ping Yu;Yuqing Lin;Ling Xiang;L. Su;Jun Zhang;L. Mao
这封信描述了水溶性咪唑基离子液体（ILs）的分子膜的形成和可能的电化学应用在玻碳（GC）电极。X射线光电子能谱（XPS）和电化学测试结果表明，本研究中使用的水溶性离子液体可以与GC电极相互作用，并在电极表面形成分子膜。所形成的分子膜被发现具有惊人的电化学性能，如对抗坏血酸（AA）的电催化和促进辣根过氧化物酶（HRP）的直接电子转移的能力。该演示将为水溶性离子液体的新的电化学应用铺平道路，并设想是有用的水溶性离子液体在水介质中的电化学性质的调查提供了相同的抗衡阴离子用作支持电解质。
This letter describes the formation and possible electrochemical applications of molecular films of water-miscible imidazolium-based ionic liquids (ILs) on glassy carbon (GC) electrodes. X-ray photoelectron spectroscopy (XPS) and electrochemical results indicate that the water-miscible ILs used in this study can interact with the GC electrode and form molecular films on the electrode surface. The formed molecular films are found to possess striking electrochemical properties such as electrocatalysis toward ascorbic acid (AA) and the capability to facilitate direct electron transfer of horseradish peroxidase (HRP). This demonstration would pave the way for new electrochemical applications of water-miscible ILs and is envisaged to be useful for the investigation of the electrochemical properties of water-miscible ILs in aqueous media provided the same counteranion is used as the supporting electrolyte.