Electro-deposition of CoNi2S4 flower-like nanosheets on 3D hierarchically porous nickel skeletons with high electrochemical capacitive performance
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AbstractTernary cobalt nickel sulfide (CoNi2S4) flower-like nanosheets are directly grown on three dimensional (3D) hierarchically porous nickel skeletons by one-step electro-deposition. The resultant 3D porous Ni/CoNi2S4 composites could serve as binder-free integrated electrodes for supercapacitors, which exhibit higher capacitance than those of 3D porous Ni/Co9S8, 3D porous Ni/Ni3S2, Ni foam/CoNi2S4 and smooth Ni/CoNi2S4 electrodes. Furthermore, the 3D porous Ni/CoNi2S4 electrodes demonstrate better electrochemical reversibility and excellent rate capability. The super electrochemical capacitive behavior might be attributed to the highly interconnected conductive networks of 3D hierarchically porous Ni scaffold supported CoNi2S4 flower-like nanosheets with a large specific area and highly active sites.
All Author(s) ListWang T, Zhao B, Jiang H, Yang HP, Zhang K, Yuen MMF, Fu XZ, Sun R, Wong CP
Journal nameJournal of Materials Chemistry A
Volume Number3
Issue Number45
Pages23035 - 23041
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesChemistry; Chemistry, Physical; Energy & Fuels; Materials Science; Materials Science, Multidisciplinary

Last updated on 2020-28-09 at 02:21