期刊
APPLIED SURFACE SCIENCE
卷 263, 期 -, 页码 277-283出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2012.09.043
关键词
Spindle; LiFePO4; Supercritical methanol; Carbon
类别
资金
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- National Natural Science Foundation of China [20803096, 21073238]
- NSF of Hubei Province [2010CDA082]
- National Basic Research Program of China [2011CB211704]
- Key Laboratory of Green Catalysis of Sichuan Institute of High Education [LYJ1108]
- Ministry of Human Resources and Social Security
Spindle-like carbon coated LiFePO4 (LiFePO4/C) composites have been successfully synthesized via a novel one-pot supercritical methanol method. The products were characterized by X-ray power diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA). The particle size, morphology and electrochemical reactivity changed with the concentration of lithium and carbon source. A possible morphology evolution process was also proposed. The glucose not only facilitates the formation of single crystalline LiFePO4, but also gives an amorphous carbon layer on the surface LiFePO4 spindles. (C) 2012 Elsevier B. V. All rights reserved.
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