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Fabrication of hollow N-doped carbon supported ultrathin NiO nanosheets for high-performance supercapacitor.
- Source :
-
Inorganic Chemistry Communications . Dec2017, Vol. 86, p140-144. 5p. - Publication Year :
- 2017
-
Abstract
- The polydopamine-assisted hierarchical composites of ultrathin NiO nanosheets uniformly coating on the surface of hollow nitrogen-doped carbon spheres (HNCS-NiO) were successfully fabricated via a facile synthesis method. The hierarchical HNCS-NiO composites as electrode materials for supercapacitors exhibit high capacitance of 550.4 F g − 1 (880.6 mF cm − 2 ) at the current density of 0.5 A g − 1 (0.8 mA cm − 2 ), and present a good rate capability. The composites display excellent improved electrochemical properties not only because their hierarchical hollow nanostructures can provide enough space to buffer the volume expansion during the reversible intercalation/deintercalation processes, but also because their larger specific surface areas can provide adequate active sites for the redox electrochemical reaction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13877003
- Volume :
- 86
- Database :
- Academic Search Index
- Journal :
- Inorganic Chemistry Communications
- Publication Type :
- Academic Journal
- Accession number :
- 126392824
- Full Text :
- https://doi.org/10.1016/j.inoche.2017.10.005