纳米银修饰电极的电化学性能初探

在圆柱形电解槽中,采用直流电沉积方法在导电玻璃上沉积银纳米材料,制备了Ag/I-TO、Ag/CNTs/ITO复合电极,并以制得的复合电极做工作电极,测定两种电极在磷酸缓冲溶液中的循环伏安响应曲线。CNTs具有很高的比表面积,除了对银离子的反应具有催化作用外,还可能对带有负电荷的SCN-离子具有吸附作用。实验结果表明：银修饰的碳纳米管导电玻璃电极具有很好的电化学活性,可用于检测SCN^-。

Electrochemical Performance of Silver Nanoparticles Modified Electrode

In the cylindrical electrolytic cell,through depositing silver nano-materials on ITO with DC deposition method,Ag / ITO and Ag / CNTs / ITO composite electrodes were prepared ,the cyclic voltammetry response curve of the above-mentioned two types of electrodes in phosphate buffer solution was measured with the prepared electrodes as the work electrode. CNTs electrode has high specific surface area,it has catalytic action for silver ion reaction and adsorption action for negative charge SCN^-ion. The results show that the silver glass conductive carbon nano tube-modified electrodes with good electrochemical activity,can be used for detection of SCN^-.