Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 724, Issue -, Pages 421-426Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.07.070
Keywords
Cu2V2O7; Graphene; Mesoporous; Lithium-ion batteries
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Funding
- National Key Technology RD Program [2013BAF09B02]
- National Natural Science Foundation of China [51472152, 51672165]
- Innovation Team Assistance Foundation of Shaanxi Province [2013KCT-06]
- Innovation Team Assistance Foundation of Shaanxi University of Science and Technology [TD09-05]
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Cu2V2O7/reduced Graphene Oxide (CVO/rGO) mesoporous microspheres were prepared by low temperature hydrothermal method and the following heat treatment process. The structures and morphology were characterized by X-ray diffraction (XRD), field-emissing scanning electron microscopy (FE-SEM). The reversible capacities of this mesoporous microspheres is 830 mAh.g(-1) at 0.1 A g(-1) after 200 cycles without capacity fade, which also exhibit superior rate capabilities with reversible capacities of 524 and 170 mAh.g(-1) after 10 cycles at 1 and 5 A g(-1), respectively. These excellent electrochemical properties may be attributed to the unique structures and the synergistic energy storage effect of rGO nanosheet and Cu2V2O7. (C) 2017 Elsevier B.V. All rights reserved.
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