Comparative surface electrochemistry of Co and Co3O4 nanoparticles : nitrite as an analytical probe

Adekunle, Abolanle Saheed; Ozoemena, Kenneth I.

dc.contributor.author	Adekunle, Abolanle Saheed
dc.contributor.author	Ozoemena, Kenneth I.
dc.date.accessioned	2011-03-08T06:59:41Z
dc.date.available	2011-03-08T06:59:41Z
dc.date.issued	2010-12
dc.description.abstract	This study described the decoration of edge plane pyrolytic graphite electrode (EPPGE) with synthesised cobalt and cobalt oxide nanoparticles. The modified electrode was characterised by techniques such as TEM, FESEM, XRD, EDS, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The EPPGE-Co demonstrated enhanced electron transport and catalytic efficiency towards nitrite oxidation at pH 7.4 compared with the other electrodes studied. The catalytic rate constant (K) obtained at the EPPGE-Co for nitrite at pH 7.4 is 2.32 x 106 cm3mol-1s-1 while the limits of detection (LoD = 3.3 δ/m) is 7.3 x 10-7 M.	en
dc.identifier.citation	Adekunle, AS & Ozoemena, KI 2010, 'Comparative surface electrochemistry of Co and Co3O4 nanoparticles : nitrite as an analytical probe', International Journal of Electrochemical Science, vol. 5, no. 12, pp. 1972-1983. [http://www.electrochemsci.org]	en
dc.identifier.issn	1452-3981
dc.identifier.uri	http://hdl.handle.net/2263/15994
dc.language.iso	en	en_US
dc.publisher	Electrochemical Science Group	en_US
dc.rights	© 2010 by ESG	en_US
dc.subject	Cobalt and cobalt oxide nanoparticles	en
dc.subject	Nitrite oxidation	en
dc.subject.lcsh	Electron transport	en
dc.subject.lcsh	Nanoparticles	en
dc.subject.lcsh	Electrochemistry	en
dc.subject.lcsh	Impedance spectroscopy	en
dc.title	Comparative surface electrochemistry of Co and Co3O4 nanoparticles : nitrite as an analytical probe	en
dc.type	Article	en