期刊
ELECTROCHIMICA ACTA
卷 166, 期 -, 页码 12-16出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.03.081
关键词
Fe2O3-reduced graphene oxide; microwave assisted synthesis; sodium ion battery; anode material
资金
- National Natural Science Foundation of China [21401180, 21276087]
- Basic Research Project of Shanghai Science and Technology Committee [14JC1491000]
Fe2O3-reduced graphene oxide (RGO) composites were successfully fabricated via a facile microwave-assisted reduction of graphite oxide in Fe2O3 precursor solution using a microwave system, and investigated as anode material for sodium ion batteries (SIBs). Their morphologies, structures and electrochemical performance were characterized by transmission electron microscopy, X-ray diffraction, Raman spectroscopy, cyclic voltammetry and electrochemical impedance spectroscopy, respectively. The results show that the RGO addition can enhance the electrochemical performance of Fe2O3-RGO composites. Fe2O3-RGO composite with 30 wt.% RGO exhibits a maximum reversible capacity of 289 mA h g (1) at a current density of 50 mA g (1) after 50 cycles and excellent rate performance due to the synergistic effect between Fe2O3 and RGO. The high capacity, good rate capability and excellent cycle performance of Fe2O3-RGO composites enable them a potential electrode material for SIBs. (C) 2015 Elsevier Ltd. All rights reserved.
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