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Abstract
Ni(OH)2/reduced graphene oxide (RGO) nanosheets constituted 3D structure have been successfully prepared via a facile two-step method. Through this method, Ni(OH)2 can uniformly grow on both side of RGO nanosheets and the RGO nanosheets are partially overlapped, thereby forming a 3D structure. The Ni(OH)2/RGO composite delivers much higher specific capacitance and improved rate capability than the pure Ni(OH)2 sample and the Ni(OH)2–RGO mixture. A specific capacitance up to 1143 F g−1 at 1 A g−1 is attained, 64 % of which can still be retained after 20 times increase in current density. In addition, excellent cycling stability can also be obtained, and 97 % of the capacitance can still be retained after 1500 charge and discharge cycles.
Graphical Abstract
Ni(OH)2/RGO nanosheets constituted 3D structure have been successfully prepared, which show superior specific capacitance with improved rate capability and long cycling stability.
Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen.
