Stable deep doping of vapor-phase polymerized poly(3,4-ethylenedioxythiophene)/ionic liquid supercapacitors
Data(s) |
23/08/2016
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Resumo |
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. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Wiley-VCH |
Relação |
CE140100012 FL110100013 http://dro.deakin.edu.au/eserv/DU:30084861/forsyth-stabledeepdoping-2016.pdf http://dro.deakin.edu.au/eserv/DU:30084861/forsyth-stabledeepdoping-inpress-2016.pdf http://www.dx.doi.org/10.1002/cssc.201600333 |
Direitos |
2016, Wiley-VCH |
Palavras-Chave | #doping #electrochemistry #ionic liquids #polymerization #polymers |
Tipo |
Journal Article |