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用化学吸附法首次制备了FE(Ⅱ)、Co(Ⅱ)、Ni(Ⅱ)和Cu(Ⅱ)的3,3′,3′′,3′′′-四硝基酞菁配合物化学修饰电极(ML CME),用循环伏安法(CV)研究了它们对抗坏血酸(AH_2)的电催化氧化.与未修饰玻碳电极(GC)相比,AH_2在ML CME(GC基体)上的氧化峰电位(Epa)负移150mV左右,氧比峰电流(Ipa)明显增大.各ML CME对AH_2的电催化氧化活性均有很高的稳定性.AH_2在ML CME上的氧化峰电流和AH_2的浓度之间有着良好的线性关系.
The chemical modification of the 3,3 ’, 3’ ’, 3’ ’- tetranitrophthalocyanine complexes of FE (Ⅱ), Co (Ⅱ), Ni (Ⅱ) and Cu (Ⅱ) (ML CME) were used to study the electrocatalytic oxidation of ascorbic acid (AH_2) by cyclic voltammetry (CV). Compared with unmodified glassy carbon electrode (GC), the oxidation of AH_2 on ML CME The peak potential (Epa) was negatively shifted by about 150mV and the specific peak current (Ipa) significantly increased.Each ML CME had a high stability to the electrocatalytic oxidation of AH_2.The peak current of oxidation peak of AH_2 at ML CME and AH_2 There is a good linear relationship between the concentrations.