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Type: Artigo de periódico
Title: Preliminary electrochemical study of phenothiazines and phenoxazines immobilized on zirconium phosphate
Author: Pessoa, CA
Gushikem, Y
Kubota, LT
Gorton, L
Abstract: The electrochemical properties of one phenothiazine (Methylene Blue) and one phenoxazine (Nile Blue) dye immobilized on zirconium phosphate were investigated by incorporation into a carbon paste electrode. The dyes presented a very stable redox property. The midpoint potentials (E-m) were 150 and 50 mV vs. SCE for Methylene Blue and Nile Blue, respectively. The composition and pH of the supporting electrolyte did not affect the E-m, in contrast to those observed for the dyes in solution phase or when adsorbed on carbon. These electrodes showed a good activity in a test made for electrocatalytic oxidation of NADH. (C) 1997 Elsevier Science S.A.
Subject: electrocatalytic oxidation of NADH
Nile Blue
Methylene Blue
zirconium phosphate
carbon paste
Country: Suíça
Editor: Elsevier Science Sa Lausanne
Rights: fechado
Identifier DOI: 10.1016/S0022-0728(97)00168-X
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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