Stable deep doping of vapor-phase polymerized poly(3,4-ethylenedioxythiophene)/ionic liquid supercapacitors

Karlsson, Christoffer, Nicholas, James, Evans, Drew, Forsyth, Maria, Strømme, Maria, Sjödin, Martin, Howlett, Patrick C. and Pozo-Gonzalo, Cristina 2016, Stable deep doping of vapor-phase polymerized poly(3,4-ethylenedioxythiophene)/ionic liquid supercapacitors, ChemSusChem, vol. 9, no. 16, pp. 2112-2121, doi: 10.1002/cssc.201600333.

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Title Stable deep doping of vapor-phase polymerized poly(3,4-ethylenedioxythiophene)/ionic liquid supercapacitors
Author(s) Karlsson, Christoffer
Nicholas, James
Evans, Drew
Forsyth, MariaORCID iD for Forsyth, Maria
Strømme, Maria
Sjödin, Martin
Howlett, Patrick C.ORCID iD for Howlett, Patrick C.
Pozo-Gonzalo, CristinaORCID iD for Pozo-Gonzalo, Cristina
Journal name ChemSusChem
Volume number 9
Issue number 16
Start page 2112
End page 2121
Total pages 11
Publisher Wiley-VCH
Place of publication Weinheim, Germany
Publication date 2016-08-23
ISSN 1864-564X
Keyword(s) doping
ionic liquids
Summary Liquid-solution polymerization and vapor-phase polymerization (VPP) have been used to manufacture a series of chloride- and tosylate-doped poly(3,4-ethylenedioxythiophene) (PEDOT) carbon paper electrodes. The electrochemistry, specific capacitance, and specific charge were determined for single electrodes in 1-ethyl-3-methylimidazolium dicyanamide (emim dca) ionic liquid electrolyte. VPP-PEDOT exhibits outstanding properties with a specific capacitance higher than 300 F g(-1) , the highest value reported for a PEDOT-based conducting polymer, and doping levels as high as 0.7 charges per monomer were achieved. Furthermore, symmetric PEDOT supercapacitor cells with the emim dca electrolyte exhibited a high specific capacitance (76.4 F g(-1) ) and high specific energy (19.8 Wh kg(-1) ). A Ragone plot shows that the VPP-PEDOT cells combine the high specific power of conventional ("pure") capacitors with the high specific energy of batteries, a highly sought-after target for energy storage.
Language eng
DOI 10.1002/cssc.201600333
Field of Research 091205 Functional Materials
030604 Electrochemistry
0399 Other Chemical Sciences
Socio Economic Objective 970102 Expanding Knowledge in the Physical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID CE140100012
Copyright notice ©2016, Wiley-VCH
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Document type: Journal Article
Collections: Institute for Frontier Materials
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