%0 Journal Article
%@ 15726657
%A Ali, A.
%A Ammar, M.
%A Mukhtar, A.
%A Ahmed, T.
%A Ali, M.
%A Waqas, M.
%A Amin, M.N.
%A Rasheed, A.
%D 2020
%F scholars:13543
%I Elsevier B.V.
%J Journal of Electroanalytical Chemistry
%K Activated carbon; Capacitance; Coremaking; Electric discharges; Electrochemical electrodes; Hydrothermal synthesis; Nanosheets; Nanowires; Potassium hydroxide; Shells (structures); Supercapacitor, Asymmetric supercapacitor; Electrochemical characteristics; Electrochemical performance; Energy density; Energy storage applications; Microwave-assisted hydrothermal synthesis; Power densities; Supercapacitor electrodes, Nickel oxide
%R 10.1016/j.jelechem.2019.113710
%T 3D NiO nanowires@NiO nanosheets core-shell structures grown on nickel foam for high performance supercapacitor electrode
%U https://khub.utp.edu.my/scholars/13543/
%V 857
%X A 3D core-shell NiO nanowires@NiO nanosheets at nickel foam (NF) was synthesized by using two different synthesis processes. One was hydrothermal synthesis for core material and other was microwave-assisted hydrothermal synthesis for shell material. In 3 M KOH, a good electrochemical performance was shown by the as-prepared electrode in terms of specific capacitance (Cs) of 1782 F g� 1 at 1 A g� 1 with 70.33 retention of its initial capacitance after 7000 galvanic charge-discharge (GCD) cycles. An asymmetric supercapacitor (ASC) was prepared using NiO nanowires@NiO nanosheets@NF as positive and activated carbon coated NF (AC@NF) as a negative electrode and showed Cs of 110 F g� 1 with retention of 79.9 of its initial capacitance after 5000 GCD cycles. ASC exhibited the highest energy and power density of 39.18 Wh kg� 1 (at 906.59 W kg� 1) and 12.25 kW kg� 1 (at 12.66 Wh kg� 1). The superior electrochemical characteristics owing to excellent synergistic effects associated with core-shell structure of NiO nanowires and nanosheets showed a great potential of core-shell NiO nanowires@NiO nanosheets@NF composite for energy storage applications. © 2019 Elsevier B.V.
%Z cited By 33