Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium

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Title: Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium
Authors: Salavagione, Horacio Javier | Arias Pardilla, Joaquín | Garcés, Pedro | Morallon, Emilia | Barbero, César Alfredo | Vázquez Picó, José Luis
Research Group/s: Electrocatálisis y Electroquímica de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Ingeniería de la Construcción, Obras Públicas e Infraestructura Urbana | Universidad Nacional de Río Cuarto (Argentina). Departamento de Química
Keywords: Aminophenol | FTIR spectrocopy | Cyclic voltammetry | Electroactive polymers
Knowledge Area: Química Física | Ciencia de Materiales
Date Created: 5-Nov-2003
Issue Date: 20-Dec-2003
Publisher: Elsevier
Citation: SALAVAGIONE, Horacio Javier, et al. "Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium". Journal of Electroanalytical Chemistry. Vol. 565, Issue 2 (15 Apr. 2004). ISSN 0022-0728, pp. 375-383
Abstract: The electrochemical oxidation of para-, meta- and ortho-aminophenols was carried out using a platinum electrode in aqueous acid medium. The spectroscopic results indicate that p-aminophenol suffers hydrolysis giving the formation of hydroquinone/p-benzoquinone. CO2 has been detected by in situ FTIR spectroscopy as the main soluble oxidation product. The m-aminophenol oxidation produces a blocking polymeric film on the platinum surface. The main oxidation products detected by in situ infrared spectroscopy were CO2 and quinone. Cyclic voltammetry and in situ FTIR spectroscopy were combined to study the redox processes of the conducting polymer obtained in the o-aminophenol oxidation. The spectroscopic results indicate that phenoxazine units are produced during the oxidation/reduction of poly(o-aminophenol).
Sponsor: Generalitat Valenciana (GV01-313); Ministerio de Ciencia y Tecnología (MAT2001-1007); CONICET, SECYT-UNRC, Agencia Córdoba Ciencia, FONCYT, Fundación Antorchas.
URI: http://hdl.handle.net/10045/7811
ISSN: 0022-0728
DOI: 10.1016/j.jelechem.2003.11.005
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.jelechem.2003.11.005
Appears in Collections:INV - GEPE - Artículos de Revistas
INV - DMCIA - Artículos de Revistas

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