Voltammetric and impedimetric properties of nano-scaled y--Fe2O3 catalysts supported on multi-walled carbon nanotubes : catalytic detection of dopamine
| dc.contributor.author | Adekunle, Abolanle Saheed | |
| dc.contributor.author | Ozoemena, Kenneth I. | |
| dc.date.accessioned | 2011-03-08T07:04:35Z | |
| dc.date.available | 2011-03-08T07:04:35Z | |
| dc.date.issued | 2010-12 | |
| dc.description.abstract | The electron transfer and electrocatalytic proiperties of iron oxide nanoparticle (-Fe2O3) catalysts supported on MWCNTs are described. The MWCNT-Fe2O3 and its electrodes were successfully characterised with FESEM, HRTEM, XRD, EDX, cyclic voltammetry and electrochemical impedance spectroscopy. The MWCNT-Fe2O3 based electrodes demonstrated fastest electron transport and current response towards DA compared to other electrodes studied, giving a catalytic rate constant of 16.4 x 105 cm3mol-1s-1, sensitivity of 0.026 AM-1 and limit of detection of 3.3 x 10-7 M. The electrode may be potentially useful for the detection of DA in real drug sample analysis. | en |
| dc.identifier.citation | Adekunle, AS & Ozoemena, KI 2010, 'Voltammetric and impedimetric properties of nano-scaled y--Fe2O3 catalysts supported on multi-walled carbon nanotubes : catalytic detection of dopamine', International Journal of Electrochemical Science, vol. 5, no. 12, pp. 1726-1742. [http://www.electrochemsci.org] | en |
| dc.identifier.issn | 1452-3981 | |
| dc.identifier.uri | http://hdl.handle.net/2263/15998 | |
| dc.language.iso | en | en_US |
| dc.publisher | Electrochemical Science Group | en_US |
| dc.rights | © 2010 by ESG | en_US |
| dc.subject | MWCNTs | en |
| dc.subject | Iron oxide nanoparticles | en |
| dc.subject | Electrochemical impedance spectroscopy | en |
| dc.subject | Dopamine detection | en |
| dc.subject.lcsh | Voltammetry | en |
| dc.subject.lcsh | Electrocatalysis | en |
| dc.title | Voltammetric and impedimetric properties of nano-scaled y--Fe2O3 catalysts supported on multi-walled carbon nanotubes : catalytic detection of dopamine | en |
| dc.type | Article | en |