Studies of spectroscopy and cyclic voltammetry on a zirconium hexacyanoferrate modified electrode

Citation
Sq. Liu et al., Studies of spectroscopy and cyclic voltammetry on a zirconium hexacyanoferrate modified electrode, J ELEC CHEM, 502(1-2), 2001, pp. 197-203
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN journal
1572-6657 → ACNP
Volume
502
Issue
1-2
Year of publication
2001
Pages
197 - 203
Database
ISI
SICI code
Abstract
Zirconium hexacyanoferrate (ZrHCF), a new Prussian blue analog with electro activity, was immobilized on the surface of a gold electrode by electrochem ical sweeps and characterized by infrared spectroscopy, X-ray photoelectron energy and voltammetry. The results show that the electroactive white depo sit attached to the gold substrate is actually composed of zirconium hexacy anoferrate(II). The electrochemical behavior of the ZrHCF modified electrod e was studied by cyclic voltammetry; the peak current is proportional to th e sweep rate up to 200 mV s(-1). Under optimized conditions the peak-to-pea k separation is only 3 mV, showing the characteristics of the surface react ion. Ion effects of the supporting electrolyte suggest that cations have a considerable effect on the electrochemical behavior of the modified electro de. (C) 2001 Elsevier Science B.V. All rights reserved.