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虎门体育官方登录入口网:标题

Mesoporous Fe2O3 flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

虎门体育官方登录入口网:作者

作者:Wang, JH (Wang, Junhua)^[1,2 ]; Gao, MX (Gao, Mingxia)^[1,2 ]; Pan, HG (Pan, Hongge)^[1,2 ]; Liu, YF (Liu, Yongfeng)^[1,2 ]; Zhang, Z (Zhang, Ze)^[3,4 ]; Li, JX (Li, Jixue)^[3,4 ]; Su, QM (Su, Qingmei)^[5 ]; Du, GH (Du, Gaohui)^[5 ]; Zhu, M (Zhu, Min)^[6 ]; Ouyang, LZ (Ouyang, Liuzhang)^[6 ]; Shang, CX (Shang, Congxiao)^[7 ]; Guo, ZX (Guo, Zhengxiao)^[8 ]更多内容更少内容

虎门体育官方登录入口网:期刊信息

虎门体育官方登录入口网:摘要

Reticulated mesoporous Fe2O3@C flakes, consisting of nanocrystalline alpha-Fe2O3 encased within a thin carbon skeleton, were synthesized using ferrocene as iron and carbon sources and a novel reaction agent of ammonium sulphate via a facile two-step heating route. Those flakes, which were several nanometers thick and 1-2 mm in diameter, showed high capacity, excellent cyclic stability and rate capability as an anode material for lithium-ion batteries (LIBs). An initial reversible capacity of 910 mA h g(-1) at a discharge/charge current of 0.1 A g(-1) was obtained, and the capacity showed a gradual increase during cycling, reaching a high capacity of 1080 mA h g(-1) after 120 cycles. An in situ lithiation study by transmission electron microscopy showed that the reticulated mesopores and the ultrathin feature of the Fe2O3@C flakes can largely accommodate the mechanical stresses and volume expansion of Fe2O3 during lithiation and hence maintain their integrity and provide excellent properties. The thin carbon skeleton not only facilitates the electronic conduction, but also inhibits the aggregation of nanocrystalline Fe2O3 flakes. The facile fabrication method and the unique structure of the mesoporous Fe2O3@C flakes offer high performance for LIB anodes and great potential for other applications of Fe2O3.

虎门体育官方登录入口网:关键词

KeyWords Plus:HIGH-PERFORMANCE ANODES; COATED FE3O4 COMPOSITES; STORAGE CAPABILITY; ELECTROCHEMICAL PERFORMANCE; THERMAL-DECOMPOSITION; NEGATIVE-ELECTRODE; AMMONIUM-SULFATE; HOLLOW SPHERES; ONE-POT; ALPHA-FE2O3

虎门体育官方登录入口网:作者信息

作者信息

通讯作者地址:Gao, MX (通讯作者)

Zhejiang Univ, State Key Lab Silicon Mat, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310027, Zhejiang, Peoples R China.   增强组织信息的名称     Zhejiang University

地址:

	[ 1 ] Zhejiang Univ, State Key Lab Silicon Mat, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310027, Zhejiang, Peoples R China   增强组织信息的名称     Zhejiang University
	[ 2 ] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China   增强组织信息的名称     Zhejiang University
	[ 3 ] Zhejiang Univ, State Key Lab Silicon Mat, Ctr Electron Microscopy, Hangzhou 310027, Zhejiang, Peoples R China   增强组织信息的名称     Zhejiang University
	[ 4 ] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China   增强组织信息的名称     Zhejiang University
	[ 5 ] Zhejiang Normal Univ, Inst Phys Chem, Jinhua 321004, Peoples R China   增强组织信息的名称     Zhejiang Normal University
	[ 6 ] S China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 7 ] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England   增强组织信息的名称     University of East Anglia
	[ 8 ] UCL, Dept Chem, London WC1H 0AJ, England   增强组织信息的名称     University College London     University of London

电子邮件地址:gaomx@zju.edu.cn

虎门体育官方登录入口网:出版商

ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND

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