Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 784, Issue -, Pages 712-719Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.12.351
Keywords
Zipper-like; NiCo2O4/Ni(OH)(2); Composite; Supercapacitor
Categories
Funding
- National Natural Science Foundation of China [51574062]
- Research on the development and utilization of new energy resources in PetroChina [XN41602]
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The increased needs for sustainable energy storage devices make it urgent to develop novel supercapacitor electrode materials. An ingenious zipper-like NiCo2O4/Ni(OH)(2) composite has been successfully grown on nickel foam via a one-pot hydrothermal method free of any template or catalyst. Owing to its close contact with the substrate, its distinguished zipper-like structure and unique ingredients, the specific capacitance of NiCo2O4/Ni(OH)(2) was as high as 2721 mF cm(-2) at 1 mA cm(-2); 2161 mF cm(-2) was obtained even at 50 mA cm(-2); and it retained 86% capacity after 10000 cycles. The facile synthesis method and remarkable capacitive performance of the zipper-like NiCo2O4/Ni(OH)(2) make it attractive for supercapacitor applications. (C) 2019 Elsevier B.V. All rights reserved.
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