ELECTROCATALYSTS FOR THE 4-ELECTRON REDUCTION OF DIOXYGEN BASED ON ADSORBED COBALT TETRAPYRIDYLPORPHYRIN MOLECULES LINKED BY AQUAAMINE COMPLEXES OF RUTHENIUM(II)

被引：46

作者：

SHI, CN ^{[1
]}

ANSON, FC ^{[1
]}

机构：

[1] CALTECH,ARTHUR AMOS NOYES LAB CHEM PHYS,DIV CHEM & CHEM ENGN,PASADENA,CA 91125

来源：

INORGANICA CHIMICA ACTA | 1994年 / 225卷 / 1-2期

关键词：

ELECTROCATALYSIS; DIOXYGEN REDUCTION; COBALT COMPLEXES; PORPHYRIN COMPLEXES; RUTHENIUM COMPLEXES; AMMINE COMPLEXES;

D O I：

10.1016/0020-1693(94)04050-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Prolonged exposure of graphite electrodes coated with cobalt tetrapyridylporphyrin to solutions of fac-Ru(NH3)(5)(OH2)(3)(2+) results in the formation of stable, apparently polymeric complexes on the surface in which the porphyrins are linked by bridging Ru centers. Electrochemical evidence in support of this assertion is presented. The coatings obtained endow the coated electrodes with the ability of catalyze the four-electron reduction of O-2 at unusually positive potentials.

引用

页码：215 / 227

页数：13

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