Publication Type Journal Article
Title Electrochemical copolymerisation of luminol with aniline: A new route for the preparation of self-doped polyanilines
Authors V. C. Ferreira A. C. Cascalheira L. M. Abrantes
Groups
Journal ELECTROCHIMICA ACTA
Year 2008
Month April
Volume 53
Number 11
Pages 3803-3811
Abstract Electrochemical copolymerisation of luminol and aniline from acidic aqueous medium onto gold electrodes has been investigated. Cyclic voltammetry in combination with electrochemical quartz crystal microbalance (EQCM) have been used to study both the in situ growth and redox switching process. In monomer free solution, the deposited polymers are stable and electrochemically active but distinct behaviour is shown by poly(luminol-aniline) films obtained from solutions with different monomers concentration ratio. In acidic medium, the current-voltage profiles range from a polyluminol (one pair of redox couple) to a polyaniline like redox conversion (three redox couples) as the aniline concentration increases. Unlike polyaniline, all prepared copolymers display well expressed electroactivity in sodium carbonate medium (pH 8), which also extends with the aniline content. The self-doping role assured by luminol moiety in the copolymer is also retrieved from the simultaneously recorded EQCM data. (c) 2007 Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.electacta.2007.08.020
ISBN
Publisher
Book Title
ISSN 0013-4686
EISSN
Conference Name
Bibtex ID ISI:000254728900009
Observations
Back to Publications List