Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5458580 | Journal of Alloys and Compounds | 2017 | 12 Pages |
â¢Use of solvothermal technique for production of nickel hydroxide/graphene oxide composite.â¢Spherical nickel hydroxide composed of nanosheets.â¢Excellent electrochemical properties of composite electrode material.
Spherical composite of Ni(OH)2/GO was produced via a surfactant free solvothermal technique and tested as electrode materials for electrochemical capacitors. The structural and morphological analysis confirmed that deposition of Ni(OH)2 onto GO does not change the crystal structure of pure hexagonal α-Ni(OH)2. Electrode fabricated from the Ni(OH)2/GO composite demonstrates a superior electrochemical performance when compared to that of pure Ni(OH)2, GO, and Mix-Ni(OH)2/GO electrodes with Ni(OH)2/GO electrode exhibiting a specific capacity of â¼420 mA h gâ1 which correspond to a specific capacitance of 3619 F gâ1 at 2.5 A gâ1, as well as a corresponding rate capability of 78% at 10 A gâ1. The stability study of the Ni(OH)2/GO composite reveals a good capacity retention of â¼95% at a current density of 10 A gâ1 after 3000 charge-discharge cycles.
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