| 硬脂酸钠在油/水界面自组装膜的电化学研究 |
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| 引用本文： | 唐丽娜,王凤平,朱永春.硬脂酸钠在油/水界面自组装膜的电化学研究[J].电化学,2006,12(3):324-328. |
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| 作者姓名： | 唐丽娜 王凤平 朱永春 |
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| 作者单位： | 辽宁师范大学,化学化工学院,辽宁大连,116029;沈阳师范大学,化学与生命科学学院,辽宁,沈阳,110034 |
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| 基金项目： | 国家自然科学基金;辽宁省教育厅资助项目 |
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| 摘 要： | 应用循环伏安法,以铜离子为探针研究硬脂酸钠在油/水界面上的自组装过程.结果表明,硬脂酸钠在蓖麻油/水界面上自组装,经4种聚集状态而达到完整的有序单层膜.Cu2+离子在涂蓖麻油电极上的氧化是完全受吸附控制,而在表面活性剂硬脂酸钠自组装膜的油/水界面上,则其电极过程受扩散和吸附两者混合控制.循环伏安测试给出,峰电流ip随扫描速率v变化的拟合方程为:ip=9.214?3.889v1/2+0.5809v,r=0.9978.
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| 关 键 词： | 自组装膜 硬脂酸钠 油/水界面 循环伏安 铜离子 |
| 文章编号： | 1006-3471（2006）03-0324-005 |
| 收稿时间： | 2005-11-16 |
| 修稿时间： | 2006-01-04 |
The Electrochemical Study on Self-assembled Monolayers of Sodium Stearate Surfactant on Oil/Water Interface |
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| TANG Li-na,WANG Feng-ping,ZHU Yong-chun.The Electrochemical Study on Self-assembled Monolayers of Sodium Stearate Surfactant on Oil/Water Interface[J].Electrochemistry,2006,12(3):324-328. |
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| Authors: | TANG Li-na WANG Feng-ping ZHU Yong-chun |
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| Institution: | 1. Faculty of Chemistry and Chemical Engineering, Liaoning Normal University,Dalian116029, Liaoning, China, 2. School of Chemistry and Life Science, Shengyang Normal Uniw;rsity , Shenyang 110034, Liaoning , China |
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| Abstract: | The self-assembled monolayers of sodium stearate surfactant on oil/water interface was investigated by CV with copper ion as probe.The self-assembling process includes four stages,and forms a stable assembly.The electrochemical oxidation of copper ion at assembled surface is a combine controlled process both surface and diffusion with regression equation as i_(p) = 9.214-3.889 v~(1/2) 0.5809v,r=0.9978,compared with the oil covered bared electrode,it is a complete surface controlled. |
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| Keywords: | Self-assembled monolayers Sodium stearate Oil/water interface Cyclic voltammetry Copper ion |
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