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Amorphous silicon-carbon nanospheres synthesized by chemical vapor deposition using cheap methyltrichlorosilane as improved anode materials for Li-ion batteries
Zhang, Zailei1; Zhang, Meiju1; Wang, Yanhong1; Tan, Qiangqiang1; Lv, Xiao1; Zhong, Ziyi2; Li, Hong3; Su, Fabing1
2013
Source PublicationNANOSCALE
Volume5Issue:12Pages:5384-5389
AbstractWe report the preparation and characterization of amorphous silicon-carbon (Si-C) nanospheres as anode materials in Li-ion batteries. These nanospheres were synthesized by a chemical vapor deposition at 900 degrees C using methyltrichlorosilane (CH3SiCl3) as both the Si and C precursor, which is a cheap byproduct in the organosilane industry. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, nitrogen adsorption, thermal gravimetric analysis, Raman spectroscopy, and X-ray photoelectron spectroscopy. It was found that the synthesized Si-C nanospheres composed of amorphous C (about 60 wt%) and Si (about 40 wt%) had a diameter of 400-600 nm and a surface area of 43.8 m(2) g(-1). Their charge capacities were 483.6, 331.7, 298.6, 180.6, and 344.2 mA h g(-1) at 50, 200, 500, 1000, and 50 mA g(-1) after 50 cycles, higher than that of the commercial graphite anode. The Si-C amorphous structure could absorb a large volume change of Si during Li insertion and extraction reactions and hinder the cracking or crumbling of the electrode, thus resulting in the improved reversible capacity and cycling stability. The work opens a new way to fabricate low cost Si-C anode materials for Li-ion batteries.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
Language英语
WOS KeywordLITHIUM SECONDARY BATTERIES ; NANODISPERSED SILICON ; MESOPOROUS CARBON ; CATALYST SUPPORT ; NATURAL GRAPHITE ; COMPOSITE ANODE ; NANOCOMPOSITES ; PARTICLES ; NANOWIRES ; INSERTION
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000319756200031
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Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13384
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.ASTAR, Inst Chem Engn & Sci, Jurong Isl 627833, Singapore
3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zailei,Zhang, Meiju,Wang, Yanhong,et al. Amorphous silicon-carbon nanospheres synthesized by chemical vapor deposition using cheap methyltrichlorosilane as improved anode materials for Li-ion batteries[J]. NANOSCALE,2013,5(12):5384-5389.
APA Zhang, Zailei.,Zhang, Meiju.,Wang, Yanhong.,Tan, Qiangqiang.,Lv, Xiao.,...&Su, Fabing.(2013).Amorphous silicon-carbon nanospheres synthesized by chemical vapor deposition using cheap methyltrichlorosilane as improved anode materials for Li-ion batteries.NANOSCALE,5(12),5384-5389.
MLA Zhang, Zailei,et al."Amorphous silicon-carbon nanospheres synthesized by chemical vapor deposition using cheap methyltrichlorosilane as improved anode materials for Li-ion batteries".NANOSCALE 5.12(2013):5384-5389.
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