alpha-Fe2O3 Nanostructures: Inorganic Salt-Controlled Synthesis and Their Electrochemical Performance toward Lithium Storage

doi:10.1021/jp8058307

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	alpha-Fe2O3 Nanostructures: Inorganic Salt-Controlled Synthesis and Their Electrochemical Performance toward Lithium Storage
	Wu, Xing-Long 2; Guo, Yu-Guo1 ; Wan, Li-Jun 1; Hu, Chang-Wen
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2008-10-30
卷号	112 期号:43 页码:16824-16829
ISSN号	1932-7447
DOI	10.1021/jp8058307
英文摘要	By applying the concept of an inorganic structure-directing agent, uniform alpha-Fe2O3 nanospheres of about 300 nm in diameter and well-defined nanorhombohedra of about 50-80 nm in size have been successfully synthesized using the simple inorganic sodium salt of NaAc and NaCl as the only structure-directing agent in the hydrothermal system, respectively. In comparison, only micrometer sphere-like aggregates composed of irregular nanoparticles of about 80-120 nm were obtained without the presence of any inorganic salt additives. All three nanostructures are investigated with XRD, SEM, TEM, and electrochemical tests toward lithium storage. It is found that the particle size and shape hits a remarkable effect on the lithium insertion/extraction behavior. Among the three alpha-Fe2O3 nanostructures, nanospheres show a very high specific capacity of >600 mA h g(-1) in the initial 10 cycles and >414 mA h g(-1) after 60 cycles as well as good cycling performance, exhibiting great potential as anode materials in lithium-ion batteries. It benefits from the proper submicrometer size with the right surface area and the spherical shape.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000260357800017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/65711]
专题	中国科学院化学研究所
通讯作者	Guo, Yu-Guo
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.CAS, Grad Sch, Beijing 100064, Peoples R China 3.BNLMS, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xing-Long,Guo, Yu-Guo,Wan, Li-Jun,et al. alpha-Fe2O3 Nanostructures: Inorganic Salt-Controlled Synthesis and Their Electrochemical Performance toward Lithium Storage[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2008,112(43):16824-16829.
APA	Wu, Xing-Long,Guo, Yu-Guo,Wan, Li-Jun,&Hu, Chang-Wen.(2008).alpha-Fe2O3 Nanostructures: Inorganic Salt-Controlled Synthesis and Their Electrochemical Performance toward Lithium Storage.JOURNAL OF PHYSICAL CHEMISTRY C,112(43),16824-16829.
MLA	Wu, Xing-Long,et al."alpha-Fe2O3 Nanostructures: Inorganic Salt-Controlled Synthesis and Their Electrochemical Performance toward Lithium Storage".JOURNAL OF PHYSICAL CHEMISTRY C 112.43(2008):16824-16829.