ROTATING-RING-DISC ANALYSIS OF IRON TETRA(N-METHYLPYRIDYL)PORPHYRIN IN ELECTROCATALYSIS OF OXYGEN

被引：97

作者：

BETTELHEIM, A ^{[1
]}

KUWANA, T ^{[1
]}

机构：

[1] OHIO STATE UNIV,DEPT CHEM,COLUMBUS,OH 43210

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 13期

关键词：

D O I：

10.1021/ac50049a046

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

When cyclic voltammetry and the rotating ring-disc electrode (RRDE) were used, the water soluble Iron tetra( N-methylpyrldyl)porphyrin (FeTMPyP) was found to catalyze O2 electroreduction by ca. 400 mV and produce H2O2, at a yield of 95 %, as the initial product. Using the RRDE method, the rate of removal of Fe(II)TMPyP by O2 was estimated to be in the 107-108 M-1 s-1 region. A mechanism involving an “iron(III)-superoxide ion” Intermediate seems to be consistent with the above experimental results and with other data reported in the literature. © 1979, American Chemical Society. All rights reserved.

引用

页码：2257 / 2260

页数：4

共 10 条

[1]

ALBERY WJ, 1971, RING DISK ELECTRODES, P73

[2]

CHAN R, UNPUBLISHED

[3] PICKET-FENCE PORPHYRINS - SYNTHETIC MODELS FOR OXYGEN BINDING HEMOPROTEINS [J].