Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode.
Use of a glassy carbon (GC) modified by adhered microparticles of MgB2 mediates the reduction process of Fe(III)(CN)63- during cyclic voltammetry. Peak potential was observed to shift slightly to less negative value by about 50 mV and current is significantly enhanced by about two folds. The sensiti...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
International Frequency Sensor Association Publishing
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/14467/1/Electrochemical%20reduction%20of%20potassium%20ferricyanide%20mediated%20by%20magnesium%20diboride%20modified%20carbon%20electrode.pdf |
| _version_ | 1796968650951884800 |
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| author | Tan, Wee Tee Yusri, Farhan Zainal, Zulkarnain |
| author_facet | Tan, Wee Tee Yusri, Farhan Zainal, Zulkarnain |
| author_sort | Tan, Wee Tee |
| collection | UPM |
| description | Use of a glassy carbon (GC) modified by adhered microparticles of MgB2 mediates the reduction process of Fe(III)(CN)63- during cyclic voltammetry. Peak potential was observed to shift slightly to less negative value by about 50 mV and current is significantly enhanced by about two folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, electrolyte and scan rate. The result of scanning electron micrograph of MgB2 obtained before and after electrolysis show the size increased slightly to the size ranging from 2 - 5.5 µm attributing to the hydration effect and/or incorporation of some ionic species into the crystal lattices of MgB2. Interestingly, redox reaction of Fe(III) solution using modified GC electrode remain constant even after 15cycling. It is therefore evident that the MgB2 modified GC electrode posseses some degree of stability. Potential use of MgB2 as a useful electrode material is therefore clearly evident. |
| first_indexed | 2024-03-06T07:31:27Z |
| format | Article |
| id | upm.eprints-14467 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:31:27Z |
| publishDate | 2009 |
| publisher | International Frequency Sensor Association Publishing |
| record_format | dspace |
| spelling | upm.eprints-144672016-01-19T04:09:54Z http://psasir.upm.edu.my/id/eprint/14467/ Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. Tan, Wee Tee Yusri, Farhan Zainal, Zulkarnain Use of a glassy carbon (GC) modified by adhered microparticles of MgB2 mediates the reduction process of Fe(III)(CN)63- during cyclic voltammetry. Peak potential was observed to shift slightly to less negative value by about 50 mV and current is significantly enhanced by about two folds. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, electrolyte and scan rate. The result of scanning electron micrograph of MgB2 obtained before and after electrolysis show the size increased slightly to the size ranging from 2 - 5.5 µm attributing to the hydration effect and/or incorporation of some ionic species into the crystal lattices of MgB2. Interestingly, redox reaction of Fe(III) solution using modified GC electrode remain constant even after 15cycling. It is therefore evident that the MgB2 modified GC electrode posseses some degree of stability. Potential use of MgB2 as a useful electrode material is therefore clearly evident. International Frequency Sensor Association Publishing 2009-05 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/14467/1/Electrochemical%20reduction%20of%20potassium%20ferricyanide%20mediated%20by%20magnesium%20diboride%20modified%20carbon%20electrode.pdf Tan, Wee Tee and Yusri, Farhan and Zainal, Zulkarnain (2009) Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. Sensors & Transducers Journal, 104 (5). pp. 119-127. ISSN 2306-8515; ESSN: 1726- 5479 English |
| spellingShingle | Tan, Wee Tee Yusri, Farhan Zainal, Zulkarnain Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. |
| title | Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. |
| title_full | Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. |
| title_fullStr | Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. |
| title_full_unstemmed | Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. |
| title_short | Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode. |
| title_sort | electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode |
| url | http://psasir.upm.edu.my/id/eprint/14467/1/Electrochemical%20reduction%20of%20potassium%20ferricyanide%20mediated%20by%20magnesium%20diboride%20modified%20carbon%20electrode.pdf |
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