化学修饰电极的研究 V:铁卟啉修饰电极对氧的催化还原

Researches on chemically modified electrode V: Catalytic reduction of oxygen on iron porphyrin modified electrode

By surface organio synthesis a Fe (III) tetra-o-aminophenyl porphyrin modified electrode was successfully prepared on glassy carbon electrode surface through amidization. The preparation considitions were invesigated in detail. Using cyclie voltametry and cyclie semidifferential polarography in an acidic aqueous solution the behavior of the catalytic reduction of oxygen on iron porphyrin modified electrode was studied. Based on experimental results it was shown that the irreversible process of 2- electronreduction to hydrogen peroxide belongs to EC parallel catalytic process.