期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 15, 期 2, 页码 521-525出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp43501b
关键词
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资金
- National Natural Science Foundation of China [20901003, 20971003, 21073001, 21005001]
- Chinese Ministry of Education [209060]
- Anhui Provincial Natural Science Foundation [1208085QB28]
- Natural Science Foundation of Anhui [KJ2012A139]
- Program for Innovative Research Team at Anhui Normal University
A facile and low-cost approach has been developed to fabricate porous CuO nanobelts directly grown on a Cu substrate. The as-prepared CuO samples can be directly used as integrated electrodes for lithium-ion batteries and pseudo-supercapacitors without the addition of other ancillary materials such as carbon black or a binder to enhance electrode conductivity and cycling stability. The unique nanostructural features endow them with excellent electrochemical performance as demonstrated by high capacities of 640 mA h g(-1) after 100 cycles at 0.2 C rate and an excellent specific capacitance of 340 F g(-1), which corresponds to the energy density of 45 W h kg(-1). The cyclability of the electrode demonstrates only a 10-15% loss in capacitance over 5000 cycles.
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