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

Authors
ELSHAFEI AA SHABANAH HM MOUSSA MNH
Citation
Aa. Elshafei et al., ELECTROCATALYTIC OXIDATION OF FORMIC-ACID ON PT BINARY AND TERNARY ELECTRODES IN H3PO4, Journal of electroanalytical chemistry [1992], 362(1-2), 1993, pp. 159-165
Citations number
59
Categorie Soggetti
Electrochemistry,"Chemistry Analytical
Journal title
Journal of electroanalytical chemistry [1992]
ISSN journal
15726657 → ACNP
Volume
362
Issue
1-2
Year of publication
1993
Pages
159 - 165
Database
ISI
SICI code
Abstract
The oxidation of formic acid on a Pt electrode is strongly catalysed b y 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 under potential deposition of Pb+Ge, Pb+Cd, Tl+Ge and Tl+Cd on a Pt electrod e greatly enhances the electrocatalytic activity over that of single m etal adatoms. Enhancement by binary adatoms decreases in the order PbGe>Ph+Cd>Tl+Ge>Tl+Cd.