This study describes the fabrication and characterisation of modified glassy carbon electrode (GCE) with metal oxide/graphene nanocomposite using chemical reduction method in alkaline aqueous solution for detection of glucose. Two types of metal oxide/graphene nanocomposites have been synthesised in this study, namely cuprous oxide/graphene (Cu2O/graphene) nanocomposite and iron oxide/graphene (Fe3O4/graphene) nanocomposite. These nanocomposites were characterised by Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, transmission electron microscopy and field emission scanning electron microscopy. The electrochemical properties of modified electrodes were examined using cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry. The results show that the type of solvent used for casting the nanocomposite dispersion on electrode, pH, concentration of electrolyte, weight of nanocomposite dispersion c.....

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