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Electro-polymerisation of 3,4-ethylenedioxythiophene on reticulated vitreous carbon in imidazolium-based chloroaluminate ionic liquid as energy storage material

Electro-polymerisation of 3,4-ethylenedioxythiophene on reticulated vitreous carbon in imidazolium-based chloroaluminate ionic liquid as energy storage material
Electro-polymerisation of 3,4-ethylenedioxythiophene on reticulated vitreous carbon in imidazolium-based chloroaluminate ionic liquid as energy storage material
This work shows the electro-polymerisation of thin film poly(3,4-ethylenedioxythiophene) on three-dimensional reticulated vitreous carbon substrates by cyclic voltammetry and pulsed polymerisation methods from a Lewis neutral chloroaluminate ionic liquid containing 3,4-ethylenedioxythiophene monomer. The polymer composite is attractive as an energy storage electrode for sustainable and high-performance technologies due to its unique properties of battery and capacitor in one system, i.e., the redox reaction occurring simultaneously with the anion doping/de-doping of the conductive polymer with AlCl4- ionic species contained in the ionic liquid. The structure of the polymer films, their doping/de-doping mechanism and the stability in the ionic liquid were characterised by scanning electron microscopy and cyclic voltammetry and compared with films electro-polymerised on planar vitreous carbon. The typical granular and nano/micro-porous polymer structure observed on planar vitreous carbon was successfully replicated on the macro-porous reticulated vitreous carbon surface. The polymer films show approximately 45% higher capacity than films on planar substrates and similar efficient redox behaviour, proofing that the material has hybrid battery-capacitor properties enhanced by the higher area per unit volume of reticulated vitreous carbon.
Conductive polymers, EDOT oxidation, electro-polymerisation, PEDOT, poly(3,4-ethylenedioxythiophene), reticulated vitreous carbon
1388-2481
52-56
Schoetz, T.
cf930a0a-087e-4be0-ac2b-614abcc3f424
Ponce De Leon Albarran, C.
508a312e-75ff-4bcb-9151-dacc424d755c
Bund, A.
4ed46a72-39e2-4d2b-a5cf-0b713be53680
Ueda, M.
605dc0d5-cd98-4b87-b31b-7b308955a1d3
Schoetz, T.
cf930a0a-087e-4be0-ac2b-614abcc3f424
Ponce De Leon Albarran, C.
508a312e-75ff-4bcb-9151-dacc424d755c
Bund, A.
4ed46a72-39e2-4d2b-a5cf-0b713be53680
Ueda, M.
605dc0d5-cd98-4b87-b31b-7b308955a1d3

Schoetz, T., Ponce De Leon Albarran, C., Bund, A. and Ueda, M. (2018) Electro-polymerisation of 3,4-ethylenedioxythiophene on reticulated vitreous carbon in imidazolium-based chloroaluminate ionic liquid as energy storage material. Electrochemistry Communications, 89, 52-56. (doi:10.1016/j.elecom.2018.02.018).

Record type: Article

Abstract

This work shows the electro-polymerisation of thin film poly(3,4-ethylenedioxythiophene) on three-dimensional reticulated vitreous carbon substrates by cyclic voltammetry and pulsed polymerisation methods from a Lewis neutral chloroaluminate ionic liquid containing 3,4-ethylenedioxythiophene monomer. The polymer composite is attractive as an energy storage electrode for sustainable and high-performance technologies due to its unique properties of battery and capacitor in one system, i.e., the redox reaction occurring simultaneously with the anion doping/de-doping of the conductive polymer with AlCl4- ionic species contained in the ionic liquid. The structure of the polymer films, their doping/de-doping mechanism and the stability in the ionic liquid were characterised by scanning electron microscopy and cyclic voltammetry and compared with films electro-polymerised on planar vitreous carbon. The typical granular and nano/micro-porous polymer structure observed on planar vitreous carbon was successfully replicated on the macro-porous reticulated vitreous carbon surface. The polymer films show approximately 45% higher capacity than films on planar substrates and similar efficient redox behaviour, proofing that the material has hybrid battery-capacitor properties enhanced by the higher area per unit volume of reticulated vitreous carbon.

Text
Electro-polymerisation of 34-ethylenedioxythiophene Accepted paper - Accepted Manuscript
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Accepted/In Press date: 26 February 2018
e-pub ahead of print date: 27 February 2018
Published date: April 2018
Keywords: Conductive polymers, EDOT oxidation, electro-polymerisation, PEDOT, poly(3,4-ethylenedioxythiophene), reticulated vitreous carbon

Identifiers

Local EPrints ID: 418681
URI: http://eprints.soton.ac.uk/id/eprint/418681
ISSN: 1388-2481
PURE UUID: 51c4683d-e04a-495a-ab6f-0157e6361b33
ORCID for C. Ponce De Leon Albarran: ORCID iD orcid.org/0000-0002-1907-5913

Catalogue record

Date deposited: 16 Mar 2018 17:30
Last modified: 26 Nov 2021 06:45

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Contributors

Author: T. Schoetz
Author: A. Bund
Author: M. Ueda

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