碳原子线修饰电极的循环伏安行为及其对NADH的电催化作用

Cyclic Voltammetry and Electrocatalysis on NADH at the Carbon Atom Wire Modified Electrode

研究了碳原子线修饰电极在 1 5 5～ 10 5 6pH值范围内的 9种不同电解质溶液中的循环伏安行为 ,发现该修饰电极本身具有电化学响应 .在pH值为 6 80的磷酸盐缓冲溶液中 ,与裸玻碳电极相比 ,1mM的NADH在碳原子线修饰电极上的氧化峰电位负移 0 3 90V ,氧化峰电流增加 4 1倍 ,显示该修饰电极具有突出的电催化活性 .

A novel carbon atom wire modified electrode was studied by cyclic voltammetry in 9 electrolytes within the pH range of 1.55～10.56 and the electrochemical responses were observed. In the pH 6.80 phosphate solution, the anodic peak potential of 1mM NADH on the modified electrode shifted negatively by 0.390?V and the anodic peak current increased 4.1 times compared to those on the bare glassy carbon electrode, showing the outstanding electrocatalytic activity of the carbon atom wire modified electrode.