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Cobalt organometallic compounds by electrochemistry
Dissertation (MSc (Chemistry))--University of Pretoria, 2008.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613571505979392 |
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| access_status_str | Open Access |
| author2 | Cukrowski, Ignacy |
| author_browse | Cukrowski, Ignacy |
| author_facet | Cukrowski, Ignacy |
| collection | Thesis |
| dc_rights_str_mv | © University of Pretoria 2006E537/ |
| description | Dissertation (MSc (Chemistry))--University of Pretoria, 2008. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/26149 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:38:15.902Z |
| 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:2263/26149 Cobalt organometallic compounds by electrochemistry Cukrowski, Ignacy maboyaw@yahoo.com Maboya, Winny Kgabo Non-aqueous solvents Cyclic voltammetry Electrochemistry Chronoamperometry Flow injection analysis Organometallic compounds UCTD Dissertation (MSc (Chemistry))--University of Pretoria, 2008. The electrochemical oxidation of CoCl2(PPh3)2 was investigated in a mixture of acetonitrile and pentanol (1:1) at a platinum disk working electrode using Cyclic Voltammetry (CV) and Chronoamperometry. Elemental Analysis and Infrared Spectroscopy were used to characterise the synthesized compounds i.e. CoCl2(PPh3)2 and CoCl(PPh3)3. Cyclic Voltammetry was utilised for the examination of different working electrode materials that could be used for the anodic voltammetric studies of CoCl2 (PPh3)2, to characterise the reactants and products of each electrode reaction, to investigate the chloride binding ability to a CoCl(PPh3)3 complex, and to evaluate the electrocatalytic substitution of chloride by PPh3 from the complex CoCl2(PPh3)2. Use of ferrocene as an internal standard during the anodic studies of CoCl2(PPh3)2 was also evaluated. The number of electron involved in the electrode process, CoII to CoIII from CoCl2(PPh3)2 and diffusion coefficient of ferrocene in a mixture of acetonitrile and pentanol (1:1) were determined using Chronoamperometry. Ultraviolet-Visible (UV-Vis) and 31P Nuclear Magnetic Resonance (31P NMR) spectra were used to assist with the characterisation of the electrode reactions involved during oxidation of CoCl2(PPh3)2. Chemistry unrestricted 2013-09-07T02:52:31Z 2008-07-16 2013-09-07T02:52:31Z 2007-04-20 2008-07-16 2008-07-09 Dissertation a 2006E537/ag http://hdl.handle.net/2263/26149 http://upetd.up.ac.za/thesis/available/etd-07092008-103138/ © University of Pretoria 2006E537/ application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Non-aqueous solvents Cyclic voltammetry Electrochemistry Chronoamperometry Flow injection analysis Organometallic compounds UCTD Cobalt organometallic compounds by electrochemistry |
| title | Cobalt organometallic compounds by electrochemistry |
| title_full | Cobalt organometallic compounds by electrochemistry |
| title_fullStr | Cobalt organometallic compounds by electrochemistry |
| title_full_unstemmed | Cobalt organometallic compounds by electrochemistry |
| title_short | Cobalt organometallic compounds by electrochemistry |
| title_sort | cobalt organometallic compounds by electrochemistry |
| topic | Non-aqueous solvents Cyclic voltammetry Electrochemistry Chronoamperometry Flow injection analysis Organometallic compounds UCTD |
| url | http://hdl.handle.net/2263/26149 http://upetd.up.ac.za/thesis/available/etd-07092008-103138/ |