A facile hydrothermal reflux synthesis of Ni(OH)2/GF electrode for supercapacitor application

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Authors

Khaleed, Abubakar A.
Bello, Abdulhakeem
Dangbegnon, Julien K.
Ugbo, F.U.
Barzegar, Farshad
Momodu, Damilola Y.
Madito, M.J. (Moshawe)
Masikhwa, T.M. (Tshifhiwa)
Olaniyan, Okikiola
Manyala, Ncholu I.

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Volume Title

Publisher

Springer

Abstract

Ni(OH)2/graphene foam (GF) electrode was synthesized for electrochemical application by a facile hydrothermal reflux technique. The results obtained from the scanning electron microscopy showed that the Ni(OH)2 spheres successfully coated the entire surface area of the GF. Specific capacitance of 2420 F g-1 at a current density of 1 A g-1 was obtained for Ni(OH)2/GF composite electrode, as well as a capacitance retention of ~93% after 1000 charge-discharge cycles, demonstrating excellent cycle stability in 6.0 M KOH electrolyte. These results suggest that the composite could be a potential active material for high performance electrochemical applications.

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Keywords

Ni(OH)2/graphene foam (GF), Electrochemical application, High performance

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Citation

Khaleed, AA, Bello, A, Dangbegnon, JK, Ugbo, FU, Barzegar, F, Momodu, DY, Madito, MJ, Masikhwa, TM, Olaniyan, O & Manyala, N 2016, 'A facile hydrothermal reflux synthesis of Ni(OH)2/GF electrode for supercapacitor application', Journal of Materials Science, vol. 51, no. 12, pp. 6041-6050.