CATALYTIC INFLUENCE OF UNDERPOTENTIALLY DEPOSITED SUBMONOLAYERS OF DIFFERENT METALS IN ETHYLENE-GLYCOL OXIDATION ON VARIOUS NOBLE-METAL ELECTRODES IN ALKALINE-MEDIUM

被引：19

作者：

ELSHAFEI, AA

SHABANAH, HM

MOUSSA, MNH

机构：

[1] Chemistry Department, Faculty of Science, El-Mansoura University, El-Mansoura

来源：

JOURNAL OF POWER SOURCES | 1993年 / 46卷 / 01期

关键词：

D O I：

10.1016/0378-7753(93)80031-J

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrochemical oxidation of ethylene glycol has been studied on Pt, Pd and Au electrodes in alkaline medium in the absence and in the presence of metal ad-atoms. For pure-metal electrodes, the maximum current density was obtained at an Au electrode. However, in the presence of metal ad-atoms, enhancement of catalytic activity changes its order to: Pt > Au > Pd. The three different electrodes exhibit maximum catalytic activity when modified with Pb ad-atoms. The decreasing order of enhancement by ad-atoms under investigation is: Pb > Bi > Tl > Sn > Cd.

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页码：17 / 27

页数：11

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