The Lyme Regis Fossil Festival takes place every year in Lyme Regis, Dorset which is situated on the Jurassic Coast, a World Heritage Site. This year the CDT SIS PGRs attended as part of the University of Southampton Roadshow team.
Apr 19
Electro-polymerisation of 3,4-ethylenedioxythiophene on reticulated vitreous carbon in imidazolium-based chloroaluminate ionic liquid as energy storage material
research article
Highlights
- Electro-polymerisation of porous granular PEDOT films on reticulated vitreous carbon
- Polymerisation of stable micro/nano-structured PEDOT films by cyclic voltammetry.
- Doping/de-doping characterisation of the PEDOT films for energy storage.
- The films achieved 94% coulombic efficiency during doping/de-doping reactions.
- The films also achieved 45% more capacity than films on two-dimensional electrodes.
Apr 18
Roadshow visits the Thomas Hardye School, Dorchester
The Centre for Doctoral Training in Sustainable Infrastructure Systems this year as part of the Roadshow visited the Thomas Hardye School in Poole, Dorset. The event was to bring science into the school and pupils. The pupils were brought into the main hall where the Roadshow was exhibiting by their class groups and the researchers and students on the Roadshow presented their research to them.
Apr 17
Festival of Doctoral Research Showcase
On the 16th May 2018 the University of Southampton as part of the Festival of Doctoral Research held a showcase in Garden Court at the University to highlight the research and innovation that the University conducts. On display were posters, outreach exhibits, experiments and many more interactive exhibits.
Apr 06
CDT-SIS return to BBC Countryfile Live
CDT-SIS returned to BBC Countryfile Live for the third year in a row on the 2nd August – 5th August 2018. This year we had some fantastic new volunteers in our first years who started in September 2017 as well as some brilliant familiar faces from other CDT outreach events. All of the volunteers did an incredible job in showcasing the CDT’s research to the public on four boiling hot days.
Feb 27
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
Schoetz, T, Ponce De Leon Albarran, C, Bund, A & Ueda, M 2018,
Electrochemistry Communications
Volume 89, April 2018, Pages 52-56
https://doi.org/10.1016/j.elecom.2018.02.018
Available online 27 February 2018
Highlights
- •
-
Electro-polymerisation of porous granular PEDOT films on reticulated vitreous carbon.
- •
-
Polymerisation of stable micro/nano-structured PEDOT films by cyclic voltammetry.
- •
-
Doping/de-doping characterisation of the PEDOT films for energy storage.
- •
-
The films achieved 94% coulombic efficiency during doping/de-doping reactions.
- •
-
The films also achieved 45% more capacity than films on two-dimensional electrodes.
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, proving that the material has hybrid battery-capacitor properties enhanced by the higher area per unit volume of reticulated vitreous carbon.
Graphical abstract
Keywords
Conductive polymers
EDOT oxidation
Electro-polymerisation
PEDOT
Poly(3,4-ethylenedioxythiophene)
Reticulated vitreous carbon
Feb 19
Electro-polymerisation and characterisation of PEDOT in Lewis basic, neutral and acidic EMImCl-AlCl3 ionic liquid
Abstract
This work studied the electro-polymerisation of 3,4-ethylenedioxythiophene (EDOT) and its electrochemical behavior in Lewis acidic, neutral and basic chloroaluminate ionic liquid 1-ethyl-3-methylimidazolium chloride aluminum chloride (EMImCl-AlCl3) by cyclic voltammetry. It was found that the electro-polymerisation on vitreous carbon only occurs in Lewis neutral EMImCl-AlCl3 as a dark blue-violet film whereas the electro-polymerisation in a Lewis acidic or basic compositions is not possible due to the interactions between the conductive polymer and the ionic liquid as well as the potential stability limits of the electrolyte.