Graphene anchored with ZnFe2O4 nanoparticles as a high-capacity anode material for lithium-ion batteries |
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| Affiliation: | 1. School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaoling wei, Nanjing 210094, China;2. Key Laboratory of Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Ministry of Education, Nanjing 210094, China;1. Advanced Photocatalysis Laboratory, Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India;2. Nanomaterials Laboratory, Department of Chemistry, Kalasalingam Academy of Research and Education, Krishnankoil 626 126, Tamilnadu, India;3. Photocatalysis Laboratory, Department of Chemistry, M.R. Govt. Arts College, Mannargudi 614 001, Tamilnadu, India;1. Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, PR China;2. Environmental Engineering and Science Program, Department of Biomedical, Chemical and Environmental Engineering (DBCEE), University of Cincinnati, Cincinnati, OH 45221-0012, USA;1. B.A.M.College, Thuruthicad, Mallappally, Kerala, India;2. S.B.College, Changanassery, Kerala, India;1. Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China;2. Engineering Research Center of Materials and Technology for Electrochemical Energy Storage, Guangzhou 510006, China;3. Institute of Advanced Materials, Nanjing University of Technology, Nanjing 210009, China;4. Department of Radiation Physics, Stanford University, Arastradero, PA 1070, USA;1. Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China;2. Engineering Research Center of Materials & Technology for Electrochemical Energy Storage (Ministry of Education), Guangzhou 510006, China;3. Department of Chemical Engineering, Curtin University, Perth, WA 6158, Australia;4. Institute of Advanced Materials, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | Heterostructured ZnFe2O4–graphene nanocomposites are synthesized by a facile hydrothermal method. The as-prepared ZnFe2O4–graphene nanocomposites are characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) analysis and galvanostatic charge and discharge measurements. Compared with the pure ZnFe2O4 nanoparticles, the ZnFe2O4–graphene nanocomposites exhibit much larger reversible capacity up to 980 mAh g−1, greatly improved cycling stability, and excellent rate capability. The superior electrochemical performance of the ZnFe2O4–graphene nanocomposites could be attributed to the synergetic effect between the conducting graphene nanosheets and the ZnFe2O4 nanoparticles. |
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