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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...

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Main Authors: Tan, Wee Tee, Yusri, Farhan, Zainal, Zulkarnain
Format: Article
Language:English
English
Published: International Frequency Sensor Association Publishing 2009
Online Access:http://psasir.upm.edu.my/id/eprint/14467/1/Electrochemical%20reduction%20of%20potassium%20ferricyanide%20mediated%20by%20magnesium%20diboride%20modified%20carbon%20electrode.pdf
http://psasir.upm.edu.my/id/eprint/14467/
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spelling my.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
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
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.
format Article
author Tan, Wee Tee
Yusri, Farhan
Zainal, Zulkarnain
spellingShingle Tan, Wee Tee
Yusri, Farhan
Zainal, Zulkarnain
Electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode.
author_facet Tan, Wee Tee
Yusri, Farhan
Zainal, Zulkarnain
author_sort Tan, Wee Tee
title 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_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_sort electrochemical reduction of potassium ferricyanide mediated by magnesium diboride modified carbon electrode.
publisher International Frequency Sensor Association Publishing
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/14467/1/Electrochemical%20reduction%20of%20potassium%20ferricyanide%20mediated%20by%20magnesium%20diboride%20modified%20carbon%20electrode.pdf
http://psasir.upm.edu.my/id/eprint/14467/
_version_ 1643825641466888192
score 13.211869

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