Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode
The electrochemical properties of ascorbic acid (AA) have been studied using cyclic voltammetry technique at the surface of MgB2-MWCNT mixture modified glassy carbon electrode (MgB2-MWCNT/GCE) via mechanical attachment method. An enhancement factor of the ascorbic acid oxidation current by about 2...
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| Format: | Article |
| Language: | English English |
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Electrochemical Science Group
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30026/ http://psasir.upm.edu.my/id/eprint/30026/1/Electrochemical%20oxidation%20of%20ascorbic%20acid%20using%20MgB2.pdf |
| _version_ | 1848846562098151424 |
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| author | Banan, Darlene Tan, Wee Tee Sulaiman, Yusran M. F., Yusri Zidan, Mohammed Ab. Ghani, Sulaiman |
| author_facet | Banan, Darlene Tan, Wee Tee Sulaiman, Yusran M. F., Yusri Zidan, Mohammed Ab. Ghani, Sulaiman |
| author_sort | Banan, Darlene |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The electrochemical properties of ascorbic acid (AA) have been studied using cyclic voltammetry technique at the surface of MgB2-MWCNT mixture modified glassy carbon electrode (MgB2-MWCNT/GCE) via mechanical attachment method. An enhancement factor of the ascorbic acid
oxidation current by about 2 fold compared to the bare electrode was observed. The current was due to
diffusion-adsorption process with diffusion activation energy of 2.7kJmol-1. The MgB2-MWCNT/GCE has a limit of detection of 1.3µM AA with a sensitivity of 76.6 mA M-1AA. Good reproducibility and recovery rate was obtained when determining the presence of AA in real life samples.
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| first_indexed | 2025-11-15T09:04:41Z |
| format | Article |
| id | upm-30026 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:04:41Z |
| publishDate | 2013 |
| publisher | Electrochemical Science Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-300262015-08-24T07:24:50Z http://psasir.upm.edu.my/id/eprint/30026/ Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode Banan, Darlene Tan, Wee Tee Sulaiman, Yusran M. F., Yusri Zidan, Mohammed Ab. Ghani, Sulaiman The electrochemical properties of ascorbic acid (AA) have been studied using cyclic voltammetry technique at the surface of MgB2-MWCNT mixture modified glassy carbon electrode (MgB2-MWCNT/GCE) via mechanical attachment method. An enhancement factor of the ascorbic acid oxidation current by about 2 fold compared to the bare electrode was observed. The current was due to diffusion-adsorption process with diffusion activation energy of 2.7kJmol-1. The MgB2-MWCNT/GCE has a limit of detection of 1.3µM AA with a sensitivity of 76.6 mA M-1AA. Good reproducibility and recovery rate was obtained when determining the presence of AA in real life samples. Electrochemical Science Group 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30026/1/Electrochemical%20oxidation%20of%20ascorbic%20acid%20using%20MgB2.pdf Banan, Darlene and Tan, Wee Tee and Sulaiman, Yusran and M. F., Yusri and Zidan, Mohammed and Ab. Ghani, Sulaiman (2013) Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode. International Journal of Electrochemical Science, 8 (12). pp. 12519-12530. ISSN 1452-3981 http://www.electrochemsci.org/list13.htm#issue12 English |
| spellingShingle | Banan, Darlene Tan, Wee Tee Sulaiman, Yusran M. F., Yusri Zidan, Mohammed Ab. Ghani, Sulaiman Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode |
| title | Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode |
| title_full | Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode |
| title_fullStr | Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode |
| title_full_unstemmed | Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode |
| title_short | Electrochemical oxidation of ascorbic acid using MgB2-MWCNT modified glassy carbon electrode |
| title_sort | electrochemical oxidation of ascorbic acid using mgb2-mwcnt modified glassy carbon electrode |
| url | http://psasir.upm.edu.my/id/eprint/30026/ http://psasir.upm.edu.my/id/eprint/30026/ http://psasir.upm.edu.my/id/eprint/30026/1/Electrochemical%20oxidation%20of%20ascorbic%20acid%20using%20MgB2.pdf |