Hydrothermal Synthesis of Nickel Oxide Nanosheets for Lithium-Ion Batteries and Supercapacitors with Excellent Performance

Publisher:
Wiley
Publication Type:
Journal Article
Citation:
Chemistry An Asian Journal, 2013, 8 (11), pp. 2828 - 2831
Issue Date:
2013-01
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Nickel oxide nanosheets have been successfully synthesized by a facile ethylene glycol mediated hydrothermal method. The morphology and crystal structure of the nickel oxide nanosheets were characterized by X-ray diffraction, field-emission SEM, and TEM. When applied as electrode materials for lithium-ion batteries and supercapacitors, nickel oxide nanosheets exhibited a high, reversible lithium storage capacity of 1193 mAhg-1 at a current density of 500 mAg-1, an enhanced rate capability, and good cycling stability. Nickel oxide nanosheets also demonstrated a superior specific capacitance of 999 Fg-1 at a current density of 20 Ag-1 in supercapacitors.
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