Nickel(ii) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors

Alfred T. Chidembo; Kenneth I. Ozoemena; Bolade O. Agboola; Vinay Gupta; Gregory Wildgoose; Richard G. Compton

doi:10.1039/B915920G

Nickel(ii) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors

Alfred T. Chidembo, Kenneth I. Ozoemena, Bolade O. Agboola, Vinay Gupta, Gregory Wildgoose, Richard G. Compton

Research output: Contribution to journal › Article › peer-review

153 Citations (Scopus)

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) tetra-tert-butylphthalocyanine (MWCNT-tBuNiPc), MWCNT-NiTAPc exhibited superior supercapacitive behaviour, possibly due to the influence of nitrogen-containing groups on the phthalocyanine rings.

Original language	English
Pages (from-to)	228-236
Number of pages	9
Journal	Energy & Environmental Science
Volume	3
Issue number	2
DOIs	https://doi.org/10.1039/B915920G
Publication status	Published - 2010

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10.1039/B915920G

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@article{a4c0d613842644239aa2bdf1c3378553,

title = "Nickel(ii) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors",

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) tetra-tert-butylphthalocyanine (MWCNT-tBuNiPc), MWCNT-NiTAPc exhibited superior supercapacitive behaviour, possibly due to the influence of nitrogen-containing groups on the phthalocyanine rings.",

author = "Chidembo, {Alfred T.} and Ozoemena, {Kenneth I.} and Agboola, {Bolade O.} and Vinay Gupta and Gregory Wildgoose and Compton, {Richard G.}",

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doi = "10.1039/B915920G",

language = "English",

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journal = "Energy & Environmental Science",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Nickel(ii) tetra-aminophthalocyanine modified MWCNTs as potential nanocomposite materials for the development of supercapacitors

AU - Chidembo, Alfred T.

AU - Ozoemena, Kenneth I.

AU - Agboola, Bolade O.

AU - Gupta, Vinay

AU - Wildgoose, Gregory

AU - Compton, Richard G.

PY - 2010

Y1 - 2010

N2 - 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) tetra-tert-butylphthalocyanine (MWCNT-tBuNiPc), MWCNT-NiTAPc exhibited superior supercapacitive behaviour, possibly due to the influence of nitrogen-containing groups on the phthalocyanine rings.

AB - 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) tetra-tert-butylphthalocyanine (MWCNT-tBuNiPc), MWCNT-NiTAPc exhibited superior supercapacitive behaviour, possibly due to the influence of nitrogen-containing groups on the phthalocyanine rings.

U2 - 10.1039/B915920G

DO - 10.1039/B915920G

M3 - Article

SN - 1754-5692

VL - 3

SP - 228

EP - 236

JO - Energy & Environmental Science

JF - Energy & Environmental Science

IS - 2

ER -