Abstract:
A NiO/graphene nanocomposite has been prepared via one step electrochemical synthesis using simultaneous pulse alternating current dispersion of both Ni electrode and an electrode of thermally expanded graphite. Electron microscopy and Raman spectroscopy data reveals that the composite consists of graphene sheets with 2–5 layers having 0.5–2μm size as well as NiO sheets with 200–250nm dimensions comprising NiO nanoparticles of ∼3.6nm diameter. The electrochemical capacitance of the nanocomposite is 825Fg−1, with retaining 89% of the initial value after 1000 operation cycles.
Citation:
D. V. Chernysheva, I. N. Leontyev, M. V. Avramenko, N. V. Lyanguzov, T. I. Grebenyuk, N. V. Smirnova, “One step simultaneous electrochemical synthesis of NiO/multilayer graphene nanocomposite as an electrode material for high performance supercapacitors”, Mendeleev Commun., 31:2 (2021), 160–162
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https://www.mathnet.ru/eng/mendc/v31/i2/p160
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