Electrocatalytic reduction of dioxygen by cobaltporphyrin in aqueous solutions

被引：0

作者：

Jeon, S ^{[1
]}

Lee, HK ^{[1
]}

Kim, SM ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Chem, Kwangju 500757, South Korea

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 1998年 / 19卷 / 08期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electrocatalytic reduction of dioxygen by Co(TTFP)(Y)(2) {Y=H2O or HO-} is investigated by cyclic voltammetry, spectroelectrochemistry, hydrodynamic voltammetry at a glassy carbon electrode in dioxygen-saturated aqueous solutions. Electrocatalytic reduction of dioxygen by Co-II(TTFP)(Y)(2) establishes a pathway of 2e(-) reduction to form hydrogen peroxide, and then the generated hydrogen peroxide is reduced to water by Co-I(TTFP)(Y)(2) at more negative potential. Co-II(TTFP)(Y)(2) may bind dioxygen to produce the adduct complex [Co-II-O-2 or Co-III-O-2(-.)] which exhibits a Soret band at 411 nm and Q band at 531 nm.

引用

页码：825 / 830

页数：6

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