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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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膜电阻对自组装膜修饰电极电化学行为的影响
, PP. 270-275
Keywords: 自组装单分子层膜,修饰电极,膜电阻,电阻极化
Abstract:
应用循环伏安和交流阻抗技术研究了16烷基硫醇自组装膜修饰的金电极在Fe(CN)63-/Fe(CN)64-溶液中的电化学行为.无“针孔”缺陷的自组装膜对溶液与基底间的界面电子转移具有强烈的阻碍作用,当过电位较大时,In(I/η)对η1/2之间具有良好的线性关系.通过对Au/SAM/Hg模拟体系的电流———电压曲线进行测定,得到了自组装膜膜电阻的特征.指出由于膜电阻的存在,自组装膜修饰电极在Fe(CN)63-/Fe(CN)64-溶液中的行为实质上反映了膜自身的电阻特征
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