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Synthesis of ZnO tetrapods for high-performance supercapacitor applications.
- Source :
-
Materials Letters . Jul2017, Vol. 198, p192-195. 4p. - Publication Year :
- 2017
-
Abstract
- In this paper, the synthesis of ZnO tetrapods and its application as electrode materials for high-performance supercapacitors have been reported. The galvanostatic charge-discharge measurement results show that the specific capacitances of the ZnO tetrapods-based electrodes increase with the decrease of the current densities. The maximum capacitance is 160.4 F g –1 at the current density of 1.0 A g –1 . The Ragone plot shows that the ZnO tetrapods have excellent supercapacitive performance. Moreover, the cyclic stability is measured by the galvanostatic charge/discharge technique at a constant current density of 10.0 A g –1 in 1.0 M Na 2 SO 4 aqueous electrolyte. The results show the excellent capacitance retention of 94.3% over 1000 cycles. In a word, ZnO tetrapods should be the ideal potential electrode materials for low-costing and effective electrochemical supercapacitors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 198
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 122646077
- Full Text :
- https://doi.org/10.1016/j.matlet.2017.04.032