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 Soon.Liew@nottingham.ac.uk

Wim Thielemans Wim.Thielemans@kuleuven-kulak.be



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.

Journal Article Type Article
Publication Date Nov 9, 2014
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
APA6 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
DOI https://doi.org/10.1007/s10008-014-2669-7
Keywords Supercapacitor; Conducting polymer; Capacitance; Electrochemical impedance; Spectroscopy; Cyclic voltammetry; Porous materials
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.nottingh.../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

;