Study of redox mechanism of poly(o-aminophenol) using in situ techniques: evidence of two redox processes
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10045/2558
Title: | Study of redox mechanism of poly(o-aminophenol) using in situ techniques: evidence of two redox processes |
---|---|
Authors: | Salavagione, Horacio Javier | Arias Pardilla, Joaquín | Pérez Martínez, José María | Vázquez Picó, José Luis | Morallon, Emilia | Miras, María Cristina | Barbero, César Alfredo |
Research Group/s: | Electrocatálisis y Electroquímica de Polímeros |
Center, Department or Service: | Universidad de Alicante. Departamento de Química Física |
Keywords: | Poly(o-aminophenol) | In situ Raman spectroscopy | Probe beam deflection |
Knowledge Area: | Química Física |
Date Created: | 24-Nov-2004 |
Issue Date: | 6-Oct-2004 |
Publisher: | Elsevier |
Citation: | SALAVAGIONE, Horacio Javier, et al. "Study of redox mechanism of poly(o-aminophenol) using in situ techniques: evidence of two redox processes". Journal of Electroanalytical Chemistry. Vol. 576, Issue 1 (15 Febr. 2005). ISSN 0022-0728, pp. 139-145 |
Abstract: | The poly(o-aminophenol) (POAP) redox process has been studied in aqueous acid solution using spectroscopic and optic in situ techniques. The redox transition of the POAP from its completely oxidized state to its completely reduced state occurs through two consecutive reactions in which a charged intermediate species takes part. UV–Vis and Raman signals agree with an increase of the concentration of an intermediate species until the potential of the maximum redox peak, which later diminishes with the potential. The results of in situ FTIR spectroscopy agrees with Raman measurements. Probe beam deflection (PBD) suggests that during its oxidation, the polymer incorporates anions in a first process and then expels protons in a second one. |
Sponsor: | Ministerio de Ciencia y Tecnología (MAT2001-1007), Generalitat Valenciana (CTIAE/A/03/211), CONICET, SECYT-UNRC, Agencia Córdoba, FONCYT, Fundación Antorchas |
URI: | http://hdl.handle.net/10045/2558 |
ISSN: | 0022-0728 |
DOI: | 10.1016/j.jelechem.2004.10.013 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1016/j.jelechem.2004.10.013 |
Appears in Collections: | INV - GEPE - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Journal of Electroanalytical Chemistry 576 (2005) 139–145.pdf | Versión final (acceso restringido) | 350,73 kB | Adobe PDF | Open Request a copy |
Journal of Electroanalytical Chemistry 576 (2005) 139–145_proof.pdf | Versión revisada (acceso libre) | 6,37 MB | Adobe PDF | Open Preview |
Items in RUA are protected by copyright, with all rights reserved, unless otherwise indicated.