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Electrochemical behaviour of boron-doped diamond electrodes
Dissertation (MSc (Chemistry))--University of Pretoria, 2006.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613458493603841 |
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| access_status_str | Open Access |
| author2 | Stefan, Raluca-Ioana |
| author_browse | Stefan, Raluca-Ioana |
| author_facet | Stefan, Raluca-Ioana |
| collection | Thesis |
| dc_rights_str_mv | © 2001, 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 (Chemistry))--University of Pretoria, 2006. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/29652 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:28.181Z |
| 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:2263/29652 Electrochemical behaviour of boron-doped diamond electrodes Stefan, Raluca-Ioana upetd@up.ac.za Van Staden, J.F. Naidoo, Kaveshini Electrodes carbon electrochemistry Electrochemistry industrial UCTD Dissertation (MSc (Chemistry))--University of Pretoria, 2006. Conducting diamond electrodes provide unique advantages for electrochemistry such as a wide potential window, low baseline current, chemical inertness and resistance to fouling. De Beers boron-doped diamond electrodes, manufactured by chemical vapour deposition and containing varying amounts of boron, were therefore investigated in order to determine their suitability for future electrochemical applications. These electrodes were initially characterised using techniques such as SEM, LA-ICP-MS, Raman spectroscopy and XPS. The electrochemical behaviour of these electrodes was investigated in two redox systems (potassium iron (III) cyanide and cerium (III) sulphate) and two biological systems (dopamine and ascorbic acid). These results were compared against that of the conventional glassy carbon electrode. Porous boron-doped diamond, a novel electrode material, was used for the electrochemical detection of thyroid hormones (L-T3 and L-T4). These hormones have never previously been investigated using a boron-doped diamond electrode. The De Beers boron-doped diamond electrode was found to outperform the conventional glassy carbon electrode, which fouled very easily, in the detection of dopamine. Peak separation between dopamine and the interfering ascorbic acid was attained at a pretreated boron-doped diamond electrode. The feasibility of detecting thyroid hormones using a porous boron-doped diamond electrode was demonstrated, and the electrode material was patented. Chemistry unrestricted 2013-09-07T16:11:12Z 2005-11-30 2013-09-07T16:11:12Z 2002-04-01 2006-11-30 2005-11-21 Dissertation Naidoo, K 2001, Electrochemical behaviour of boron-doped diamond electrodes, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/29652 > H693/ag http://hdl.handle.net/2263/29652 http://upetd.up.ac.za/thesis/available/etd-11212005-173041/ © 2001, 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 application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Electrodes carbon electrochemistry Electrochemistry industrial UCTD Electrochemical behaviour of boron-doped diamond electrodes |
| title | Electrochemical behaviour of boron-doped diamond electrodes |
| title_full | Electrochemical behaviour of boron-doped diamond electrodes |
| title_fullStr | Electrochemical behaviour of boron-doped diamond electrodes |
| title_full_unstemmed | Electrochemical behaviour of boron-doped diamond electrodes |
| title_short | Electrochemical behaviour of boron-doped diamond electrodes |
| title_sort | electrochemical behaviour of boron doped diamond electrodes |
| topic | Electrodes carbon electrochemistry Electrochemistry industrial UCTD |
| url | http://hdl.handle.net/2263/29652 http://upetd.up.ac.za/thesis/available/etd-11212005-173041/ |