Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications
Thesis (PhD)--University of Pretoria, 2015.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
University of Pretoria
2015
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613608258568192 |
|---|---|
| access_status_str | Open Access |
| author2 | Manyala, Ncholu I. |
| author_browse | Manyala, Ncholu I. |
| author_facet | Manyala, Ncholu I. |
| collection | Thesis |
| dc_rights_str_mv | © 2015 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 | Thesis (PhD)--University of Pretoria, 2015. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/50281 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:38:50.869Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| 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:2263/50281 Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications Manyala, Ncholu I. Dangbegnon, Julien K. Momodu, Damilola Y. UCTD Thesis (PhD)--University of Pretoria, 2015. The aim and objectives of this work are to optimize the synthesis of metal hydroxides - graphene foam (GF) composites using different configurations of graphene with a facile and environmentally friendly solvothermal technique for energy storage applications. The evaluation of the morphological, structural, surface area and compositional properties of the composites were carried out with the techniques such as field emission-electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), Raman spectroscopy, and Fourier transform infrared (FT-IR) spectroscopy. The results show the existence of interlaced sheets of metal-hydroxides-graphene composites with sufficient surface area necessary for efficient charge storage. The main reason for incorporating graphene foam (GF) into these metal hydroxides in this study was due to its unique mechanical properties, good conductivity and large surface area which offer the possibility for an enhanced deposition/adsorption of the active metal hydroxides both in-situ and as a supporting template for practical applications. The electrochemical properties of the synthesized composite electrodes modified with different graphene foam nanostructures were thus explicated in a 3-electrode system (with Ag/AgCl as reference electrode)and they all showed excellent electrochemical performance. The overall results clearly demonstrated an excellent potential of graphene based composite electrode materials for energy storage applications. tm2015 Physics PhD Unrestricted 2015-10-30T11:13:08Z 2015-10-30T11:13:08Z 2015 2015 Thesis Momodu, DY 2015, Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications, PhD Thesis, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/50281> S2015 http://hdl.handle.net/2263/50281 en © 2015 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 | UCTD Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| title | Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| title_full | Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| title_fullStr | Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| title_full_unstemmed | Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| title_short | Investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| title_sort | investigation of metal hydroxides graphene composites as electrode materials for supercapacitor applications |
| topic | UCTD |
| url | http://hdl.handle.net/2263/50281 |