期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 368, 期 -, 页码 714-721出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2019.01.106
关键词
alpha-Fe2O3/C; Acid-pickled iron oxide red; Hydrothermal synthesis; Resource cycle; Li-ion batteries
资金
- National Natural Science Foundation of China [51774002, 51674068]
- Natural Science Foundation of Hebei Province [E2018501091]
- Science and Technology Project of Hebei Province [15271302D]
- Training Foundation for Scientific Research of Talents Project, Hebei Province [A2016005004]
- Fundamental Research Funds for the Central Universities [N172302001]
To recycle the waste and meet the demand for anode materials for Li-ion battery, alpha-Fe2O3/C for use as anode material is successfully prepared via a simple hydrothermal process using add-pickled iron oxide red as raw material. The techniques of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy are used to characterize the product. The synthesis conditions, including temperature and time, are optimized by orthogonal experimental design. The optimal reaction temperature, reaction time, Fe2O3/SO42- ratio, Fe2O3/glucose ratio are 120 degrees C, 30 h, 20:2 and 1:1, respectively. The sample prepared at optimal conditions exhibits a high initial specific capacity of 1144/1535 mA h g(-1) at 100 mA g(-1) and a superior cycling performance of similar to 800 mA h g(-1) after 200 cycles. Accordingly, this method provides information for the synthesis of alpha-Fe2O3/C with acid-pickled iron oxide red for the first time, which may help alleviate the problem of energy shortage and environmental pollution through the rational use of resources.
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