CO2-expanded ethanol chemical synthesis of a Fe3O4@graphene composite and its good electrochemical properties as anode material for Li-ion batteries

	CO2-expanded ethanol chemical synthesis of a Fe3O4@graphene composite and its good electrochemical properties as anode material for Li-ion batteries
	Zhuo LH ; Wu YQ ; Wang LY ; Ming J ; Yu YC ; Zhang XB ; Zhao FY
刊名	journal of materials chemistry a
	2013
卷号	1 期号:12 页码:3954-3960
关键词	HIGH-PERFORMANCE ANODE LITHIUM STORAGE PROPERTIES SUPERCRITICAL FLUIDS ELECTRODE MATERIALS FE3O4-GRAPHENE NANOCOMPOSITES NANOSTRUCTURED MATERIALS CARBON NANOFIBERS CYCLIC STABILITY GRAPHENE OXIDE FE3O4
ISSN号	2050-7488
通讯作者	zhuo lh
中文摘要	in this work, we have developed a new method to synthesize a fe3o4@graphene (fe3o4@gn) composite. first, the precursor was synthesized through the decomposition of ferric nitrate in the presence of graphene oxide in the mixed solvent of co2-expanded ethanol. then, the precursor was converted to the fe3o4@gn composite via thermal treatment in n-2 atmosphere. with the help of the co2-expanded ethanol, fe3o4 nanoparticles were coated on the surface of gn completely and uniformly with high loading. however, it is difficult to load fe3o4 particles onto the surface of gn and most of the fe3o4 particles were deviated away from gn and aggregated to form larger units in pure ethanol. when used as anode for li-ion batteries (libs), the fe3o4@gn composite with a graphene content of 25 wt% synthesized in co2-expanded ethanol manifested excellent charge-discharge cycling stability and rate performance compared with the sample synthesized in ethanol. such improved electrochemical performances should be attributed to the intimate contact between the gn and fe3o4 nanoparticles in the composite. since the present method does not need tedious pre-treatment, surfactant, or precipitate, it is a green or sustainable technology and the solvents could be recycled easily after simple phase separation. this facile method can be extended to the synthesis of other metal oxide composites, which are expected to have good performance as anode materials for libs and other applications.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000315356500019
公开日期	2014-04-18
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/50349]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zhuo LH,Wu YQ,Wang LY,et al. CO2-expanded ethanol chemical synthesis of a Fe3O4@graphene composite and its good electrochemical properties as anode material for Li-ion batteries[J]. journal of materials chemistry a,2013,1(12):3954-3960.
APA	Zhuo LH.,Wu YQ.,Wang LY.,Ming J.,Yu YC.,...&Zhao FY.(2013).CO2-expanded ethanol chemical synthesis of a Fe3O4@graphene composite and its good electrochemical properties as anode material for Li-ion batteries.journal of materials chemistry a,1(12),3954-3960.
MLA	Zhuo LH,et al."CO2-expanded ethanol chemical synthesis of a Fe3O4@graphene composite and its good electrochemical properties as anode material for Li-ion batteries".journal of materials chemistry a 1.12(2013):3954-3960.