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首页> 外文会议>International Symposium on Application of Materials Science and Energy Materials >A Novel of Multi-wall Carbon Nanotubes/Chitosan Electrochemical Sensor for Determination of Cupric ion
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A Novel of Multi-wall Carbon Nanotubes/Chitosan Electrochemical Sensor for Determination of Cupric ion

机译：用于测定铜离子的多壁碳纳米管/壳聚糖电化学传感器的一种新型

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A multi-wall carbon nanotubes/Chitosan electrochemical sensor had been fabricated by dropping CHS/MWNT solution directly onto the GC surface. The sensor was charactered by cyclic voltammetry and AC impedance with K3Fe(CN)3 as a electrochemical probe; Cyclic voltammograms(CV) and electrochemical impedance spectroscopy(EIS) indicated that the active area and electrochemical behavior of the sensor increased and improved significantly after the electrode was modified by carbon nanotubes dispersed by the chitosan. The sensor showed good electrocatalytic activity of K3Fe(CN)6. Also, from the cyclic voltammograms, we can see the process was diffusion controlled on the bare electrode and kinetics and diffusion controlled on the modified electrode. Finally Cu~(2+) responsed sensitively at the sensor which supplied a new method for the detection of Cu~(2+).
机译：通过将CHS / MWNT溶液直接滴到GC表面上，制造了一种多壁碳纳米管/壳聚糖电化学传感器。传感器具有循环伏安法和k3Fe（CN）3作为电化学探针的循环伏安法和Ac阻抗;循环伏安图（CV）和电化学阻抗光谱（EIS）表明传感器的有源区和电化学行为在通过壳聚糖分散的碳纳米管改性电极后显着显着提高。传感器显示K3Fe（CN）6的良好电催化活性。而且，从循环伏安图中，我们可以看到该过程在裸电极和动力学上控制的扩散和在改进的电极上控制的扩散。最后Cu〜（2+）在传感器上敏感地反应，该传感器提供了一种检测Cu〜（2+）的新方法。

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