Skip to main content

Research Repository

Advanced Search

Polyaniline- and poly(ethylenedioxythiophene)-cellulose nanocomposite electrodes for supercapacitors

Liew, Soon Yee; Thielemans, Wim; Walsh, Darren A.

Authors

Soon Yee Liew

Wim Thielemans



Abstract

The formation and characterisation of films of polyaniline (PANI) and poly(ethylenedioxythiophene) (PEDOT) containing cellulose nanocrystals (CNXLs) from cotton are described. PANI/CNXL films were electrodeposited from a solution containing CNXLs, HCl and aniline, while PEDOT/CNXL films were electrodeposited from a solution containing CNXLs, lithium perchlorate and ethylenedioxythiophene. In each case, incorporation of CNXLs into the electrodepositing polymer film led to the formation of a porous polymer/CNXL nanocomposite structure. The films were characterised using scanning electron microscopy, cyclic voltammetry, electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge analysis. The specific capacitances of the nanocomposite materials were higher than those of the CNXL-free counterparts (488 F/g for PANI/CNXL; 358 F/g for PANI; 69 F/g for PEDOT/CNXL; 58 F/g for PEDOT). The durability of the PANI/CNXL film under potential cycling was slightly better than that of the CNXL-free PANI, while the PEDOT film was slightly more durable than the PEDOT/CNXL film. Using electrodeposition, it was possible to form thick PANI/CNXL films, with total electrode capacitances of 2.07 F farads per squared cm (and corresponding specific capacitances of 440 F/g), demonstrating that this particular nanocomposite may be promising for the construction of high performance supercapacitors.

Citation

Liew, S. Y., Thielemans, W., & Walsh, D. A. (2014). Polyaniline- and poly(ethylenedioxythiophene)-cellulose nanocomposite electrodes for supercapacitors. Journal of Solid State Electrochemistry, 18(12), doi:10.1007/s10008-014-2669-7

Journal Article Type Article
Publication Date Nov 9, 2014
Deposit Date Sep 22, 2015
Publicly Available Date Sep 22, 2015
Journal Journal of Solid State Electrochemistry
Print ISSN 1432-8488
Electronic ISSN 1432-8488
Publisher Humana Press
Peer Reviewed Peer Reviewed
Volume 18
Issue 12
DOI https://doi.org/10.1007/s10008-014-2669-7
Keywords Supercapacitor; Conducting polymer; Capacitance; Electrochemical impedance; Spectroscopy; Cyclic voltammetry; Porous materials
Public URL http://eprints.nottingham.ac.uk/id/eprint/30164
Publisher URL http://link.springer.com/article/10.1007%2Fs10008-014-2669-7#page-1
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
Additional Information The final publication is available at Springer via http://dx.doi.org/10.1007/s10008-014-2669-7

Files


Pani-Pedot-Accepted-Manuscript.pdf (7.1 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations