| 铁氰酸镍膜修饰金电极的研制及应用 |
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| 引用本文： | 王淑敏,屈建莹. 铁氰酸镍膜修饰金电极的研制及应用[J]. 化学研究, 2008, 19(3): 79-82 |
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| 作者姓名： | 王淑敏 屈建莹 |
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| 作者单位： | 河南大学,化学化工学院,河南,开封,475004;河南大学,化学化工学院,河南,开封,475004 |
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| 摘 要： | 通过层层组装的方法，将Ni^2＋和[Fe（CN）6]^3-交替沉积在巯基乙酸功能化的金电极表面．首次成功制备了铁氰酸镍多层膜修饰电极，用循环伏安法研究了该多层膜的电化学行为，实验表明峰电流随膜层数的增加而增加，膜均匀增长．该修饰电极对一价金属离子Na^＋，K^＋，NH4^＋具有选择性响应，尤其对K^＋存在准能斯特响应，响应范围0．01～1．0mol／L；而且该电极对抗坏血酸（AA）和S2O3^2-体系的氧化具有良好的电催化作用，线性范围分别为：1．14×10^-4～1．14×10^-3mol／L和5．0×10^-4～3．1×10^-3mol／L．
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| 关 键 词： | 铁氰酸镍 电催化 修饰电极 |
Preparation and Application of Nickel Hexacyanoferrate Films Modified Gold Electrode |
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| WANG Shu-min,QU Jian-ying. Preparation and Application of Nickel Hexacyanoferrate Films Modified Gold Electrode[J]. Chemical Research, 2008, 19(3): 79-82 |
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| Authors: | WANG Shu-min QU Jian-ying |
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| Affiliation: | ( College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China) |
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| Abstract: | An electroactive nickel hexacyanoferrate(NiHCF) films through layer-by-layer assembly based on electrostatic attraction on the mercaptoacetic acid(MA) modified gold electrode were precipitated.The cation Na+,NH+4 and K+ effect on the redox peaks of the NiHCF film were investigated in detail.Experiments showed that the modified electrode exhibited selective response to these ions and exhibited a near-Nernstian response to K+.What’s more,it could catalyze the oxidation of ascorbic acid(AA) and S2O2-3 in KCl solution.All these electrodes prepared exhibited good stability. |
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| Keywords: | nickel hexacyanoferrate electrocatalysis modified electrode |
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