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- Title
MnO<sub>x</sub> Nanowires@MnO<sub>x</sub> Nanosheets Core–Shell Heterostructure Electrode for Superior Performance in Supercapacitor.
- Authors
Ma, Zhipeng; Jing, Fengyang; Hou, Liyin; Fan, Lukai; Zhao, Yao; Fan, Yuqian; Qin, Xiujuan
- Abstract
Manganese-based oxides are one of the most promising high-performance supercapacitor (SC) electrode materials. In this work, a stable MnOx nanowires@MnOx nanosheets core–shell heterostructure electrode material consisting of MnOx nanosheets grown uniformly on the surface of MnOx nanowires has been prepared by a simple liquid phase method followed by thermal treatment. The electrode displays a specific capacity of 336 F g − 1 at 1 A g − 1 and exhibits a good cycling life of 83% capacitance retention after 5000 cycles. This is mainly due to the synergy effect between the one-dimensional MnOx nanowires as the backbone structure and the two-dimensional MnOx nanosheets with large specific surface area provide more active sites and the rapid transmission of electrons. In this work, a stable MnOx nanowires@MnOx nanosheets core–shell heterostructure electrode materials consisting of vertical MnOx nanosheets grown evenly on the surface of MnOx nanowires by a simple liquid phase method followed by thermal treatment was successfully synthesized. Moreover, the synergy effect between one-dimensional MnOx nanowire as a backbone structure and two-dimensional MnOx nanosheet with electrochemical active sites reveals good performance.
- Subjects
ELECTRODE performance; SUPERCAPACITOR performance; SUPERCAPACITOR electrodes; NANOWIRES; PLASMA sheaths; ELECTRODES; SURFACE area
- Publication
NANO, 2020, Vol 15, Issue 2, pN.PAG
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292020500149