Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5458220 | Journal of Alloys and Compounds | 2017 | 29 Pages |
Abstract
Combination of CeO2 chunks and carbon nanotubes (CNTs) as supercapacitor electrode material is fabricated. Superior electrochemical performance including high specific capacitance and long term cycling stability is exhibited through electrochemical tests; the CeO2/CNTs electrode achieves specific capacitance reaching 818Â FÂ gâ1 at scan rate of 1Â mVÂ sâ1. The hybrid displays excellent capacitance retention of 95.3% after 2000 cycles. The electrochemical property is attributed to the redox properties, good electrical conductivity and synergistic effect of two materials. With the Schottky barrier at CeO2/CNTs interface, electrons can be accumulated at the Fermi level. More electrons can be released in the process of discharge. It is demonstrated that this kind of nanocomposites could be a promising candidate as electrode material for supercapacitor applications.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yang Luo, Tianye Yang, Qi Zhao, Mingzhe Zhang,