Adekunle, ASOzoemena, KI2011-03-302011-03-302010-12Adekunle, A. & Ozoemena, K. 2010. Comparative surface electrochemistry of Co and Co3O4 nanoparticles: nitrite as an analytical probe. http://hdl.handle.net/10204/49381452-3981http://www.electrochemsci.org/papers/vol5/5121972.pdfhttp://hdl.handle.net/10204/4938Copyright: 2010 Electrochemical Science Group.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 d/m) is 7.3 x 10-7 M.enCobalt nanoparticlesCobalt oxide nanoparticlesElectron transportImpedance spectroscopyNitrite oxidationElectrochemical scienceElectrochemicalsArticleAdekunle, A., & Ozoemena, K. (2010). Comparative surface electrochemistry of Co and Co3O4 nanoparticles: nitrite as an analytical probe. http://hdl.handle.net/10204/4938Adekunle, AS, and KI Ozoemena "Comparative surface electrochemistry of Co and Co3O4 nanoparticles: nitrite as an analytical probe." (2010) http://hdl.handle.net/10204/4938Adekunle A, Ozoemena K. Comparative surface electrochemistry of Co and Co3O4 nanoparticles: nitrite as an analytical probe. 2010; http://hdl.handle.net/10204/4938.TY - Article AU - Adekunle, AS AU - Ozoemena, KI AB - 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 d/m) is 7.3 x 10-7 M. DA - 2010-12 DB - ResearchSpace DP - CSIR KW - Cobalt nanoparticles KW - Cobalt oxide nanoparticles KW - Electron transport KW - Impedance spectroscopy KW - Nitrite oxidation KW - Electrochemical science KW - Electrochemicals LK - https://researchspace.csir.co.za PY - 2010 SM - 1452-3981 T1 - Comparative surface electrochemistry of Co and Co3O4 nanoparticles: nitrite as an analytical probe TI - Comparative surface electrochemistry of Co and Co3O4 nanoparticles: nitrite as an analytical probe UR - http://hdl.handle.net/10204/4938 ER -