ELECTROCATALYTIC OXIDATION OF FORMIC-ACID ON PT BINARY AND TERNARY ELECTRODES IN H3PO4

被引：10

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 ELECTROANALYTICAL CHEMISTRY | 1993年 / 362卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(93)80017-C

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The oxidation of formic acid on a Pt electrode is strongly catalysed by Pb, Tl, Cd and Ge adatoms. Under optimum conditions, the enhancement decreases in the order Pb>Tl>Cd>Ge. The Pb adatoms enhance the height of the peak at 0.5 V/RHE by more than 10-fold. The simultaneous underpotential deposition of Pb+Ge, Pb+Cd, Tl+Ge and Tl+Cd on a Pt electrode greatly enhances the electrocatalytic activity over that of single metal adatoms. Enhancement by binary adatoms decreases in the order Pb+Ge>Ph+Cd>Tl+Ge>Tl+Cd.

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页码：159 / 165

页数：7

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