ELECTRODEPOSITED PT-IR ELECTRODES - CHARACTERIZATION AND ELECTROCATALYTIC ACTIVITY FOR THE REDUCTION OF THE NITRATE ION

Authors
URETAZANARTU MS YANEZ C REYES G GANCEDO JR MARCO JF
Citation
Ms. Uretazanartu et al., ELECTRODEPOSITED PT-IR ELECTRODES - CHARACTERIZATION AND ELECTROCATALYTIC ACTIVITY FOR THE REDUCTION OF THE NITRATE ION, JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2(3), 1998, pp. 191-197
Citations number
43
Categorie Soggetti
Electrochemistry
Journal title
JOURNAL OF SOLID STATE ELECTROCHEMISTRY → ACNP
ISSN journal
14328488
Volume
2
Issue
3
Year of publication
1998
Pages
191 - 197
Database
ISI
SICI code
1432-8488(1998)2:3<191:EPE-CA>2.0.ZU;2-X
Abstract
The activity of Pt-Ir deposits on titanium for the reduction of the ni trate ion in 0.5 M perchloric acid was studied. The electrodes were ch aracterized by SEM-EDAX, XPS and cyclic voltammetry. The activity of t he electrodes for the nitrate reduction depended on the Pt-Ir ratio. R epetitive cyclic voltammograms produced an enrichment of the electrode surface with Ir and a decrease of the catalytic activity. A synergist ic effect in the electrodes with low iridium content is discussed.