Magnetic and Electrochemical Properties Study of CoFe2O4 Nanocrystals Synthesized by a Facile Hydrothermal Route
- 10 Downloads
Magnetic CoFe2O4@carbon (CFO@C) nanoparticles were synthesized by employing glucose as carbon source via hydrothermal process, and their magnetic and electrochemical properties of CFO@C are both studied in this work. The Ms and Mr values of CFO@C nanoparticles are lower than those of pure CFO samples. The changed magnetic properties may be related to the carbon layer extinguishing the surface magnetic moment with spin canting. Benefiting from the amorphous structure and good electronic conductivity of carbon shells, the CFO@C 20 wt % electrode exhibited the capacity of 201 mA h g–1 at the current density of 500 mA g–1 and high reversible capacity up to 353 mA h g–1 after 100 cycles at the current density of 50 mA g–1, respectively.
Keywords:lithium battery mixed metal oxides hydrothermal magnetic property anode material
Hao Li designed the experiments and wrote the manuscript. Chun-Ying Chao performed analyses of TG curves and TEM images. Feng-Bo Xu and Liu-Qun Fan assembled the batteries and helped to analyses the cycle performance datas. Li-Jun Wu, Zhen-Wei Dong and Tian-Li Han helped rewrite the manuscript during the revision process. All the authors have been involved in the result discussion and data analysis process.
This work was financially supported by the National Nature Science Foundation of China (51502258 and 51503176), Science and Technology Project of Henan province (182102210503), Department of Education Science and Technology key projects of Henan province (16A430007 and 18B150027).
CONFLICT OF INTEREST
The authors declare that they have no conflict of interest.
This article does not contain any studies with human participants or animals performed by any of the authors.
- 23.Nabiyouni, G., Sharifi, S., Ghanbari, D., and Salavati-Niasari, M., A simple precipitation method for synthesis CoFe2O4 nanoparticles, J. Nanostruct., 2014, vol. 4, p. 317.Google Scholar
- 43.Wu, L., Li, H., Xie, X., Chai, K., Han, P., Zhang, C., and Yang, C., Study on the effect of liquid nitrogen cold-quenching on electrochemical characteristic of TiO2 complex flakes with edged-curled derived from MAX as anode for lithium ion batteries, J. Alloys Compd., 2019, vol. 780, p. 482.CrossRefGoogle Scholar