制备了GC/MWNTs/PMo12O^3-40修饰电极,研究了其在硫酸溶液中的电化学行为,采用循环伏安法研究了修饰电极对抗坏血酸的电催化特性。结果表明,该修饰电极在硫酸溶液中的电化学行为是表面控制过程。抗坏血酸的浓度在3×10^-3~1×10^-2mol/L范围内,催化电流与抗坏血酸的浓度呈现良好的线性关系,该修饰电极具有较好的稳定性。
GC/MWNTs/PMo 12 O 3- 40 modified electrode was prepared and its electrochemical behavior in H2SO4 solution was studied.The electrochemical characteristics of the modified electrode were studied by using cyclic voltammetry.The result showed that electrochemical behavior of the modified electrode in H2SO4 solution was a diffusion-controlled process.There was a good linear relationship between the peak current and the concentration of ascorbic acid in the range of 3×10^-3 ~1×10^-2 mol/L.The modified electrode had good stability.