THE ELECTROCHEMISTRY OF NITROGEN-CONTAINING COMPOUNDS AT PLATINUM SINGLE-CRYSTAL ELECTRODES .1. HYDRAZINE BEHAVIOR ON PLATINUM BASAL PLANESIN SULFURIC-ACID-SOLUTIONS

Authors
GOMEZ R ORTS JM RODES A FELIU JM ALDAZ A
Citation
R. Gomez et al., THE ELECTROCHEMISTRY OF NITROGEN-CONTAINING COMPOUNDS AT PLATINUM SINGLE-CRYSTAL ELECTRODES .1. HYDRAZINE BEHAVIOR ON PLATINUM BASAL PLANESIN SULFURIC-ACID-SOLUTIONS, Journal of electroanalytical chemistry [1992], 358(1-2), 1993, pp. 287-305
Citations number
17
Categorie Soggetti
Electrochemistry,"Chemistry Analytical
Journal title
Journal of electroanalytical chemistry [1992]
ISSN journal
15726657 → ACNP
Volume
358
Issue
1-2
Year of publication
1993
Pages
287 - 305
Database
ISI
SICI code
Abstract
The electrochemical behaviour of hydrazine on platinum single crystal electrodes with basal orientations has been studied in 0.5 M H2SO4 by means of cyclic voltammetry. Experiments have been performed in 10(-5) -10(-2) M hydrazinium sulphate, showing that its electro-oxidation is a structure-sensitive process. Adsorption experiments at open circuit and at controlled potential conditions led only to stable irreversibly adsorbed species on Pt(110). Adsorption of neutral hydrazine species takes place on Pt(100) and Pt(111) in a reversible way, apparently wit hout net charge transfer, thus modifying the voltammetric behaviour fo r the adsorption-desorption processes of H(UPD) and possible anionic s pecies.