期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 794, 期 -, 页码 13-20出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.04.245
关键词
Flexible electrode; Carbon fiber; Sandwiched structure; Supercapacitor
资金
- National Natural Science Foundation of China [21371007]
- Anhui Provincial Natural Science Foundation for Distinguished Youth [1408085J03]
- Programs for Science and Technology Development of Anhui Province [1501021019, 1604a0902180]
- Program for Innovative Research Team at Anhui Normal University
In this study, the Ni-Co LDH nanosheets on carbon fiber covered with ultrathin mesoporous NiMoO4 nanosheet (named Ni-Co LDH@NiMoO4) were successfully fabricated, and then graphene oxide layer was closely combined with Ni-Co LDH@NiMoO4 by physical adsorption (named Carbon fiber/Ni-Co LDH@NiMoO4/GO), forming a stable sandwiched electrode material, and thus exhibits good electro-chemical performance with a high specific capacitance of 2100 F g(-1) at a current density of 1 A g(-1). The specific capacitance still maintains 91% after 5000 cycles. Moreover, an asymmetric supercapacitor was successfully assembled by using the synthesized Carbon fiber/Ni-Co LDH@NiMoO4/GO as the positive electrode and activate carbon as the negative electrode, and then, the asymmetric supercapacitor device exhibits high power density and energy density. (c) 2019 Elsevier B.V. All rights reserved.
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