期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 805, 期 -, 页码 388-395出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.07.080
关键词
NiCo2V2O8; Hierarchical microspheres; Microwave-assisted; Battery-type electrode; Hybrid supercapacitors
资金
- Talent Program of Outstanding Youth of Xinjiang Autonomous Region of China [2017Q001]
- National Natural Science Foundation of China [21461024]
Mesoporous cobalt doped nickel vanadate hierarchical microspheres were developed via microwave-assisted approach. Interestingly, the introduce of cobalt renders smooth microspheres transforming into hierarchical microspheres with uniform size self-assembled from nanorods, which displays enhanced specific surface area. Benefitting from the unique morphology and synergistic effect of cobalt and nickel, cobalt doped nickel vanadate hierarchical microspheres exhibit significantly improved performance with a higher rate capability (73.7% at 20 times) and a higher capacitance retention (82.2% after 10000 charges and discharges) compared with pure nickel vanadate. This novel design strategy has great potential for promoting the practical use of electrochemical energy storage devices. (C) 2019 Published by Elsevier B.V.
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