PYROLYSIS OF IRON AND COBALT PORPHYRINS SUBLIMATED ONTO THE SURFACE OF CARBON-BLACK AS A METHOD TO PREPARE CATALYSTS FOR O-2, REDUCTION

被引：64

作者：

WIDELOV, A

机构：

[1] Inorganic Chemistry 1, Chemical Centre, S-221 00 Lund

来源：

ELECTROCHIMICA ACTA | 1993年 / 38卷 / 17期

关键词：

COBALT TETRAPHENYLPORPHYRIN; IRON TETRAPHENYLPORPHYRIN; SUBLIMATION; PYROLYSIS; ESCA;

D O I：

10.1016/0013-4686(93)80144-O

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Cobalt and iron tetraphenylporphyrins were adsorbed on carbon black by sublimation of porphyrin in the presence of carbon black. Thus the formation of crystallites of porphyrin was avoided. Heat treatment of these preparations in an inert atmosphere increased catalytic activity for reduction of oxygen. The loss of the phenyl groups in the prophyrin molecule, with the concomitant formation of porphyrin-carbon-support bonds, was put forward as a possible explanation for the increase in activity.

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页码：2493 / 2502

页数：10

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