物理化学学报 >> 1987, Vol. 3 >> Issue (06): 658-662.doi: 10.3866/PKU.WHXB19870619
Dong Shaojun; Jiang Rongzhong
Abstract: The heat treatment of iron tetraphenylporphyrin chemically modified glassy carbon electrode has been described. The modified electrode by heat treatment shows good catalytic activity and stability for dioxygen reduction. Its catalytic activity is still maintained through 1000 cireles of cyclic voltametrie scans (100 V s~(-1)) in air saturated 0.05 mol L~(-1) H_2SO_4 solution. The effects of heat treatment temperature from 300 to 800 ℃ on the praparation and catalytic activity of the modified electrode have been studied. Using X.P.S, UV-VIS spectroscopy and Mass-spectroscopy the possible microstructure on electrode surface has been analyzed. The electrocatalytic and dynamic behaviors for dioxygen reduction at the electrode have been studied by cyclic voltametry and rotating disk electrode respectively. The rate constants of dioxygen reduction at the electrode in a variety of pH solutions have been measured. The catalytic reduction of dioxygen at this modified electrode belongs to irreversible processes including 2-electron to H_2O_2 and 4-electron to water.
董绍俊;姜荣中. 化学修饰电极的研究 ⅩⅤⅡ四苯基铁卟啉化学修饰玻碳电极的热处理及其对氧的催化还原[J]. 物理化学学报, 1987, 3(06): 658-662.
Dong Shaojun; Jiang Rongzhong. RESEARCHES ON CHEMICALLY MODIFIED ELECTRODE ⅩⅤⅡ. Electrocatalytic Reduction of Dioxygen by Iron Tetraphenylporphyrins Modified Glassy Carbon Electrode with Heat Treatment[J]. Acta Phys. -Chim. Sin., 1987, 3(06): 658-662.
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