Electrocatalytic Activity and Detection of Dihydroxybenzenes on Porous Carbon Loading Polymerized Phthalocyanatocobalt Modified Eelectrode
Nanostructured carbon with three-dimensional(3D) porous structure was prepared through polymerization of glucose by using silica nanoparticles as template.Cobalt phthalocyanine(CoTAPc) was successfully electropolymerized on the surface of porous carbon modified glassy carbon electrodes(PC/GC) to prepare porous carbon loading polymeric phthalocyatanocobalt modified electrode(p-CoTAPc/PC/GC).Cyclic voltammetry was conducted to investigate the response of the resorcinol,catechol and hydroquinone on the p-CoTAPc/PC/GC electrode.The p-CoTAPc/PC/GC showed better electrocatalytic performance on these dihydroxybenzene than the bare GC,PC/GC,and p-CoTAPc/GC.Chronoamperometry was then used for the determination of the resorcinol,catechol and hydroquinone with concentrations ranged from 5.0×10-6-5.0×10-4 mol/L,6.0×10-6-2.5×10-4 mol/L,and 2.0×10-6-8.0×10-4 mol/L,respectively based on the p-CoTAPc/PC/GC.