Document Type
Article
Rights
This item is available under a Creative Commons License for non-commercial use only
Disciplines
1.4 CHEMICAL SCIENCES
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. 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.
DOI
10.1016/j.electacta.2013.10.198
Recommended Citation
Astratine, L., Magner, E., Cassidy, J., Betts, A.: Electrodeposition and Characterisation of Copolymers Based on Pyrrole and 3,4-Ethylenedioxythiophene in BMIM BF4 Using a Microcell Configuration. Electrochimica Acta, Vol.115, January, 2014, p.440-448. http://dx# doi:10.1016/j.electacta.2013.10.198
Funder
upported by the University of Limerick and Technological University Dublin Joint Common Interest Group Scheme, Ireland.
Publication Details
Electrochimica Acta, January 2014, Pages 440–448.
Available from the publisher here
http://dx.doi.org/10.1016/j.electacta.2013.10.198