Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/75452
Type: Artigo de periódico
Title: STRUCTURE AND ELECTROCHEMICAL PROPERTY OF THE COBALT(II) HEXACYANOFERRATE COMPLEX IMMOBILIZED ON SN(IV) OXIDE-COATED ON SILICA-GEL SURFACE
Author: ZALDIVAR, GAP
GUSHIKEM, Y
BENVENUTTI, EV
DECASTRO, SC
VASQUEZ, A
Abstract: The complex cobalt hexacyanoferrate was immobilized onto a silica gel surface, chemically modified with tin(IV) oxide. The formal potential of the attached electroactive species was dependent on the supporting electrolyte used: NaNO3 = 0.39 V, KNO3 = 0.50 V and NH4NO3 = 0.53 V. A Nernstian behavior was observed for KNO3 and NH4NO3 and a quasi-Nernstian one for NaNO3 when they were used as the supporting electrolyte. The LiNO3 did not generate a reversible current peak since the hydrated ionic radius is larger than the zeolite-type cavity of the surface mixed valence complex.
Subject: TIN(IV) OXIDE ELECTRODE
CHEMICALLY MODIFIED ELECTRODE
COBALT HEXACYANOFERRATE IMMOBILIZED ON CHEMICALLY MODIFIED SILICA
CYCLIC VOLTAMMETRY OF HEXACYANOFERRATE SORBED ON TIN(IV) OXIDE
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Rights: fechado
Identifier DOI: 10.1016/0013-4686(94)85007-0
Date Issue: 1994
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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