四磺酸基酞菁钆修饰电极的电催化性能研究

摘要

Glassy carbon electrodes modified with alternating multilayer films containing gadolinium tetrasulfophthalocyanine ( GdTs( Pc ) 2 ) and diazo -resins ( DAR ) were fabricated by the electrostatic self -assembly (ESA) technique.The ultraviolet-uisible spectrophotometer (UV-Vis) analysis results indicated that the DAR/GdTs ( Pc) 2 self -assembled multilayer films were successfully fabricated , interface were studied by the Atomic Force Microscope(AFM).The electrocatalytic oxidation of ascorbic acid (AA) on the modified electrode was investigated by cyclic voltammetry technique , and it was found that the modified electrode exhibited good sensitivity for catalytic oxidation of ascorbic acid ( AA).It showed the linear relationship between peak current and the concentrations of ascorbic acid ( AA) over the range 1~9 mmol/L.%通过紫外-可见光谱跟踪研究了四磺酸基酞菁钆/重氮树脂DAR/GdTs2薄膜的自组装过程，利用原子力显微镜（AFM）表征了自组装薄膜的形貌，制备了（DAR/GdTs（Pc）2）修饰玻碳电极，应用循环伏安法测试了（DAR/GdTs（Pc）2）修饰玻碳电极对抗坏血酸的电催化性能，表明在1～9 mmol/L范围内峰电流与抗坏血酸的浓度有较好的线性关系。