BIBLIOS

Tipo
Artigos em Revista

Tipo de Documento
Artigo Completo

Título
Electrochemical Copolymerisation of Luminol with Aniline: A New Route for the Preparation of Self-doped Polyanilines.

Participantes na publicação
Ferreira, Virginia C (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Dep. Química e Bioquímica
Dep. Química e Bioquímica
CQB
A. C. Cascalheira (Author)
L. M. Abrantes. (Author)

Resumo
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.


Instituição
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Suporte
ELECTROCHIMICA ACTA

Identificadores da Publicação
ISSN - 0013-4686



Identificadores do Documento
DOI - https://doi.org/ 10.1016/j.electacta.2007.08.020

Identificadores de Qualidade
SCIMAGO Q1 (2016) - 1.355 - Electrochemistry
SCOPUS Q1 (2012) - 1.651 - Electrochemistry
Web Of Science Q1 (2017) - 5.116 - ELECTROCHEMISTRY - SCIE

Keywords
Self-doping Electrochemical copolymerisation Aniline Luminol Electrochemical quartz crystal microbalance

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