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采用滴涂法和循环伏安法在玻碳电极上电沉积一层稳定的单壁碳纳米管/聚对甲基吡啶纳米薄膜(SWNTs/POMP)。研究了邻、对硝基苯甲酸在此修饰电极上的电化学行为,建立了电化学同时测定邻、对硝基苯甲酸的新方法。实验结果表明:在0.1 mol/L HClO4溶液中,邻、对硝基苯甲酸在SWNTs/POMP电极上发生不可逆的还原反应,由于碳纳米管和聚合物薄膜的协同效应,SWNTs/POMP电极对邻、对硝基苯甲酸有很好的的电催化作用,并对其响应进行了定量分析。
A series of SWNTs / POMP films were electrodeposited on glassy carbon electrode by a dropping method and cyclic voltammetry. The electrochemical behavior of ortho-p-nitrobenzoic acid on the modified electrode was studied. A new electrochemical method for simultaneous determination of o-p-nitrobenzoic acid and p-nitrobenzoic acid was established. The experimental results show that the irreversible reduction reaction of o-p-nitrobenzoic acid on the SWNTs / POMP electrode occurs in 0.1 mol / L HClO4 solution. Due to the synergistic effect between the CNTs and the polymer film, the SWNTs / , P-nitrobenzoic acid has a good electrocatalytic effect, and its response to a quantitative analysis.