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 G. 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 G. Wildgoose
, Richard G. Compton

Physics

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

150 Scopus citations

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	British English
Pages (from-to)	228-236
Number of pages	9
Journal	Energy and Environmental Science
Volume	3
Issue number	2
DOIs	https://doi.org/10.1039/b915920g
State	Published - 2010

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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 Wildgoose, \{Gregory G.\} and Compton, \{Richard G.\}",

year = "2010",

doi = "10.1039/b915920g",

language = "British English",

volume = "3",

pages = "228--236",

journal = "Energy and Environmental Science",

issn = "1754-5692",

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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 G.

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.

UR - https://www.scopus.com/pages/publications/76449110863

U2 - 10.1039/b915920g

DO - 10.1039/b915920g

M3 - Article

AN - SCOPUS:76449110863

SN - 1754-5692

VL - 3

SP - 228

EP - 236

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 2

ER -

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

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