文献类型：期刊文献

英文题名：Facile synthesis of hierarchically structured Fe₃O₄/carbon micro-flowers and their application to lithium-ion battery anodes

作者：Jin, Shuangling[1];Deng, Honggui[1];Long, Donghui[1];Liu, Xiaojun[1];Zhan, Liang[1];Liang, Xiaoyi[1];Qiao, Wenming[1];Ling, Licheng[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：196

期号：8

起止页码：3887

外文期刊名：JOURNAL OF POWER SOURCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000288355100028)】；

基金：This work was partly supported by National Science Foundation of China (Nos. 50730003 and 50672025), National Project of Scientific and Technical Supporting Programs Funded by Ministry of Science and Technology of China (No. 2007BAE55B00), National High Technology Research and Development Program of China (No. 2007AA05Z311), and Program for New Century Excellent Talents in University (NCET-07-0285).

语种：英文

外文关键词：Lithium-ion battery; Anode; Nanocomposite; Magnetite; Carbon

摘要：A flower-like Fe3O4/carbon nanocomposite with nano/micro hierarchical structure is prepared by controlled thermal decomposition of the iron alkoxide precursor, which is obtained via an ethylene glycol-mediated solvothermal reaction of FeCl3 and hexamethylenetetramine (HMT) in the absence of any surfactant. The nanocomposite is characterized by the assembly of porous nanofiakes consisting of Fe3O4 nanoparticles and amorphous carbon that is in situ generated from the organic components of alkoxide precursor. When used as the anode materials for the lithium-ion batteries, the resultant nanocomposite shows high capacity and good cycle stability (1030 m Ah g(-1) at a current density of 0.2 C up to 150 cycles), as well as enhanced rate capability. The excellent electrochemical performance can be attributed to the high structural stability and high rate of ionic/electronic conduction arising from the synergetic effect of the unique nano/micro hierarchical structure and conductive carbon coating. (C) 2011 Elsevier B.V. All rights reserved.