Journal
ENERGY TECHNOLOGY
Volume 7, Issue 5, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201800940
Keywords
energy storage devices; hydrothermal method; large areal capacitance; NiCo2O4@NiMoO4; rGO; supercapacitors
Categories
Funding
- National Natural Science Foundation of China [61205150]
- Project of Application Breeding Program of Hefei University of Technology [JZ2016YYPY0060]
- Youth Academic Team Capacity Promotion Program [PA2017GDQT0023]
- 111 Project New Materials and Technology for Clean Energy [B18018]
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The synthesis of an efficient and economically viable supercapacitor material with a large areal capacitance for miniaturized consumer electronics is still a major challenge. Herein, densely packed 3D flower-like NiCo2O4@NiMoO4/reduced graphene oxide (rGO) composites on Ni foam which can be directly utilized as a supercapacitor material are demonstrated. The overall electrochemical performance can be significantly enhanced by an increase in the packing density of 3D flower-like structure, highly porous spatial construction, and the synergistic effects of the three materials, which generates a larger areal capacitance of 9.41Fcm(-2) and a superior cycling stability with 75% areal capacitance retention after 2000 charge-discharge cycles. This simple and low-cost supercapacitor material may have potential applications in energy storage devices.
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