Synthesis of NiO/SnO2 Nanowires for Energy Applications

H. Kaya Malatya Turgut Ozal University, Faculty of Engineering and Natural Sciences, Department of Engineering Basic Sciences, Malatya 44210, Turkey

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In this study, SnO2 nanowire arrays with lengths in the micrometres range were successfully synthesised by using polyethylene glycol (PEG) at room temperature. Then Ni was coated onto the SnO2 nanowires by chemical precipitation. These nanowires were heat-treated at 360, 450, 500, and 650° to form various phases. X-ray powder diffraction studies showed that the heat-treated sample at 500° has a tetragonal rutile SnO2 phase. The Brunauer-Emmett-Teller surface area of the untreated Sn(COO)2 nanowires was determined as 5.74 m2/g. After Ni coating and heat treatment at 360, 450, 500, and 650°, the surface areas of the NiO/SnO2 nanowires were measured to be 79.75, 33.38, 29.15, and 21.13 m2/g, respectively.

DOI:10.12693/APhysPolA.137.404 topics: SnO2 nanowires, NiO-coated SnO2 nanowires (NiO/SnO2), supercapacitor, electrode, energy storage, PEG