ELECTROCATALYTIC PROPERTIES OF CHEMICALLY POLYMERIZED FILMS OF COBALT, IRON AND MANGANESE TETRAKIS(O-AMINOPHENYL)PORPHYRINS

被引：38

作者：

HAYON, J ^{[1
]}

RAVEH, A ^{[1
]}

BETTELHEIM, A ^{[1
]}

机构：

[1] NUCL RES CTR NEGEV,DIV CHEM,IL-84190 BEER SHEVA,ISRAEL

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1993年 / 359卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(93)80410-J

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polymeric films of tetrakis(o-aminophenyl)porphyrins (abbreviated H-2(o-NH2)TPP) and their cobalt, iron and manganese analogs were obtained by reacting the aniline groups with nitrite ions in an acidic medium. The electrocatalytic properties of the chemically polymerized (CP) Co(o-NH2)TPP films towards O-2 reduction and CP-Fe(o-NH2)TPP towards the reduction of nitrite ions are described and compared with those reported in the literature for the reduction of dioxygen by electropolymerized (EP) films of Co(o-NH2)TPP and for nitrite reduction by dissolved and electropolymerized iron porphyrins. It is also shown that CP-Mn(o-NH2)TPP films mediate the electro-oxidation of glucose oxidase. Amperometric measurements conducted with glucose electrodes based on these films show that the current is linearly proportional to glucose concentrations up to 6X10(-2) M. This linearity range is two orders of magnitude higher than that previously reported for Mn(o-NH2)TPP and enzyme both immobilized in colloidal graphite.

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页码：209 / 221

页数：13

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