期刊
NANO ENERGY
卷 7, 期 -, 页码 72-79出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2014.04.007
关键词
alpha-MoO3; PANI; Nanobelts; Coaxial heterostructure; Supercapacitor
类别
资金
- National Natural Science Foundation of China [21171035, 51302 035]
- Key Grant Project of Chinese Ministry of Education [313015]
- PhD Programs Foundation of the Ministry of Education of the People's Republic of China [20110075110008, 20130075120001]
- National 863 Program of China [2013AA031903]
- Science and Technology Commission of Shanghai Municipality [13ZR1451200]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1221]
- Hong Kong Scholars Program
- China Postdoctoral Science Foundation
- Fundamental Research Funds for the Central Universities
- Shanghai Leading Academic Discipline Project [B603]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
A large-scale of MoO3/PANI coaxial heterostructure nanobelts have been fabricated for high-performance supercapacitors via a simple and green approach without any surfactant. Herein, the assembly of PANI conductive layer on the surface of the well-crystallized alpha-MoO3 nanobelts was carried out using ammonium persulfate (APS) as oxidant by in-situ polymerization at room temperature. As-prepared MoO3/PANI coaxial heterostructure nanobelts have been successfully employed as supercapacitor electrodes. It was found that the as-synthesized MoO3/PANI coaxial heterostructure nanobelts exhibited excellent supercapacitor performance with high specific capacitances of 714 F g(-1) at a scan rate of 1 mV s(-1) and 632 F g(-1) at a current density of 1 A g(-1) in 1 M H2SO4 electrolyte, whereas the original alpha-MoO3 nanobelts just showed initial specific capacitances of 275 F g(-1) and 267 F g(-1) at 1 mV s(-1) and 1 A g(-1), respectively, which attributed to the synergic effect between the PANI coating and the original alpha-MoO3 nanobelts. (C) 2014 Elsevier Ltd. All rights reserved.
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