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Electrodeposition and characterisation of copolymers based on pyrrole and 3,4-ethylenedioxythiophene in BMIM BF4 using a microcell configuration

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Show simple item record Astratine, Lavinia Magner, Edmond Cassidy, John Betts, Anthony 2014-10-29T09:52:08Z 2014-10-29T09:52:08Z 2014
dc.description peer-reviewed en_US
dc.description.abstract Electrochemical copolymerization of pyrrole (Py) and 3,4-ethylenedioxythiophene (EDOT) was performed in an ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, (BMIM BF4) employing a 'micro-cell' in order to use the materials efficiently. Characterization of the copolymers formed on an ITO substrate was performed for different Py: EDOT ratios (1:2, 1:1, 2:1) in both aqueous and ionic liquid electrolytes. The three copolymers displayed different absorbance spectra with lambda max of the polaron species at 507,540 and 580 nm for PPy-co-PEDOT ratios of 1:2, 1:1, 2:1, respectively. Electrochemical and spectroelectrochemical analysis revealed that the properties of the copolymer depend upon the Py/EDOT monomer ratio used. The copolymer PPy-co-PEDOT (2:1) displayed good stability, a switching time of 20 s and a colouration efficiency of 101.3 C-1cm2. The presence of Py in the copolymer stabilised the polaron state of the copolymer and allowed greater ion mobility compared to the PEDOT alone. (C) 2013 Elsevier Ltd. All rights reserved. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Electrochimica Acta;115, pp. 440-448
dc.rights This is the author’s version of a work that was accepted for publication in Electrochimica Acta. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electrochimica Acta, 115, pp. 440-448, en_US
dc.subject copolymer en_US
dc.subject polypyrrole en_US
dc.subject 3,4- ethylenedioxythiophene en_US
dc.subject 1-butyl-3-methylimidazolium tetrafluoroborate en_US
dc.subject microcell en_US
dc.title Electrodeposition and characterisation of copolymers based on pyrrole and 3,4-ethylenedioxythiophene in BMIM BF4 using a microcell configuration en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2014-10-29T09:43:26Z
dc.description.version ACCEPTED
dc.identifier.doi 10.1016/j.electacta.2013.10.198
dc.identifier.doi 10.1016/j.electacta.2013.10.198
dc.contributor.sponsor INSPIRE
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1559597
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed

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