Electrochemical behavior of a glassy-carbon electrode chemically modified with cadmium pentacyanonitrosylferrate in the presence of tetrahydrothiophene

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Data

2011-12-01

Autores

Paim, Leonardo L. [UNESP]
Stradiotto, Nelson Ramos [UNESP]

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Editor

Elsevier B.V. Sa

Resumo

A glassy-carbon electrode was modified with cadmium pentacyanonitrosylferrate film using cyclic voltammetry. The voltammetry behavior of the cadmium pentacyanonitrosylferrate on the glassy-carbon electrode shows a redox couple (Fe(III)/Fe(II)) with E of 593 mV (I(pa)/I(pc) = 0.96) and Delta E(p), of 34 mV in 0.5 mol dm(-3) KNO(3) (nu = 100 mV s(-1)) with an adsorption-controlled process. The anodic-peak currents of the film decreased in the presence of tetrahydrothiophene clue to a reaction of the precipitation on the film surface by a nucleophilic attack. (C) 2011 Elsevier B.V. All rights reserved.

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Palavras-chave

Tetrahydrothiophene, Cadmium pentacyanonitrosylferrate, Cyclic voltammetry, Square-wave voltammetry

Como citar

Journal of Electroanalytical Chemistry. Lausanne: Elsevier B.V. Sa, v. 663, n. 1, p. 43-47, 2011.