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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4936

Title: Nickel(II) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors
Authors: Chidembo, AT
Ozoemena, KI
Agboola, BO
Gupta, V
Wildgoose, GG
Compton, RG
Keywords: Phthalocyanine
Carbon nanotubes
Supercapacitors
Impedance spectroscopy
Environmental science
Energy
Chemistry
Issue Date: Nov-2010
Publisher: The Royal Society of Chemistry
Citation: Chidembo, AT, Ozoemena, KI, Agboola, BO et al. 2010. Nickel(II) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors. Energy & Environmental Science, Vol. 3, pp 228-236
Series/Report no.: Workflow request;6126
Abstract: The supercapacitive properties of nickel(II) tetraaminophthalocyanine(NiTAPc)/multi-walled carbon nanotube(MWCNT) nanocomposite films have been interrogated for the first time and found to possess a maximum specific capacitance of 981 ± 57 F g-1 (200 ± 12 mF cm-2), a maximum power density of 700 ± 1 Wkg-1, a maximum specific energy of 134 ± 8 Wh kg-1 and excellent stability of over 1500 charge-discharge continuous cycling. Impedimetric study proves that most of the stored energy of the MWCNT-NiTAPc nanocomposite can be accessible at high frequency (720 Hz). When compared to MWCNTs modified with unsubstituted nickel(II)phthalocyanine(MWCNT-NiPc) or nickel(II) tetratert- butylphthalocyanine (MWCNT-tBuNiPc), MWCNT-NiTAPc exhibited superior supercapacitive behaviour, possibly due to the influence of nitrogen-containing groups on the phthalocyanine rings.
Description: Copyright: 2010 The Royal Society of Chemistry
URI: http://pubs.rsc.org/en/Content/ArticleLanding/2010/EE/b915920g
http://hdl.handle.net/10204/4936
ISSN: 1754-5692
Appears in Collections:Environmental management
Nanotechnology
General science, engineering & technology

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