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Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors
Dissertation (MSc)--University of Pretoria, 2010.
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University of Pretoria
2013
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| _version_ | 1867613454297202688 |
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| access_status_str | Open Access |
| author2 | Ozoemena, Kenneth I. |
| author_browse | Ozoemena, Kenneth I. |
| author_facet | Ozoemena, Kenneth I. |
| collection | Thesis |
| dc_rights_str_mv | © 2009, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc)--University of Pretoria, 2010. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/27239 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:24.202Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/27239 Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors Ozoemena, Kenneth I. alfo206@yahoo.com Chidembo, Alfred Tawirirana Tetraamino phthalocyanine Nickel (Ni) Nickel (II) tetraamino phthalocyanine (NiTAPc) UCTD Dissertation (MSc)--University of Pretoria, 2010. The thesis examines for the first time the supercapacitive properties of three different nickel (II) phthalocyanine complexes, nickel (II) tetraamino phthalocyanine (NiTAPc), nickel (II) phthalocyanine and nickel (II) tetra tert-butylphthalocyanine as a) nanocomposites with multiwalled carbon nanotubes and as (b) an electropolymer supported on multiwalled carbon nanotube platform (MWCNT-polyNiTAPc). The supercapacitive properties of nickel (II) tetraaminophthalocyanine (NiTAPc)/multi-walled carbon nanotube (MWCNT) nanocomposite films have been found to possess a maximum specific capacitance of 981 F g-1 (200 mF cm-2), a maximum power density of 700 Wkg -1, a maximum specific energy of 134 Wh kg-1 and excellent stability of over 1500 chargedischarge continuous cycling. 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. The MWCNTpolyNiTAPc electrode had a maximum (112 mF cm-2) capacitance which was higher than that observed for MWCNT-polyNi(OH)TAPc (84.9 mFcm-2) but lower that of the MWCNT-NiTAPc (200 mF cm-2). Copyright Chemistry unrestricted 2013-09-07T11:00:06Z 2010-08-13 2013-09-07T11:00:06Z 2010-04-16 2010-08-13 2010-08-13 Dissertation Chidembo, AT 2009, Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/27239 > E10/400/gm http://hdl.handle.net/2263/27239 http://upetd.up.ac.za/thesis/available/etd-08132010-195636/ © 2009, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Tetraamino phthalocyanine Nickel (Ni) Nickel (II) tetraamino phthalocyanine (NiTAPc) UCTD Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors |
| title | Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors |
| title_full | Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors |
| title_fullStr | Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors |
| title_full_unstemmed | Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors |
| title_short | Nickel (II) phthalocyanine-multi-walled carbon nanotube hybrids as supercapacitors |
| title_sort | nickel ii phthalocyanine multi walled carbon nanotube hybrids as supercapacitors |
| topic | Tetraamino phthalocyanine Nickel (Ni) Nickel (II) tetraamino phthalocyanine (NiTAPc) UCTD |
| url | http://hdl.handle.net/2263/27239 http://upetd.up.ac.za/thesis/available/etd-08132010-195636/ |