OXYGEN REDUCTION IN AN ACID-MEDIUM - ELECTROCATALYSIS BY CONPC(1,2) IMPREGNATED ON A CARBON-BLACK SUPPORT - EFFECT OF LOADING AND HEAT-TREATMENT

被引：18

作者：

BILOUL, A

COOWAR, F

CONTAMIN, O

SCARBECK, G

SAVY, M

VANDENHAM, D

RIGA, J

VERBIST, JJ

机构：

[1] CNRS, LEI, 1 PL A BRIAND, F-92195 MEUDON, FRANCE

[2] TWENTE UNIV TECHNOL, 7500 AE ENSCHEDE, NETHERLANDS

[3] FAC UNIV NOTRE DAME PAIX, B-5000 NAMUR, BELGIUM

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1993年 / 350卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(93)80205-V

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

O2 reduction in an acid medium has been investigated on a transition metal macrocycle, CoNPc(1,2), impregnated on a carbon black support with a high dibutylphthalate adsorption value, using a rotating disk electrode and voltammetry techniques described previously, combined with X-ray photoelectron spectroscopy measurements. Optimal activity was found for a bilayer coverage (n = 2) at 17%-18% w/w loading. Heat treatment seems to be beneficial for n less-than-or-equal-to 3: it increases the overall number N of exchanged electrons and improves the electrode wetting. For the most active samples, mixed Co(II)/Co(III) valencies were displayed.

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页码：189 / 204

页数：16

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