Synergies of the crystallinity and conductive agents on the electrochemical properties of the hollow Fe3O4 spheres

被引：34

作者：

Deng, Yuanfu ^{[1
,2
]}

Zhang, Qiumei ^{[2
,3
]}

Shi, Zhicong ^{[2
,3
]}

Han, Lijun ^{[1
]}

Peng, Feng ^{[1
]}

Chen, Guohua ^{[2
,4
]}

机构：

[1] S China Univ Technol, Key Lab Fuel Cell Technol Guangdong Prov, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Guangzhou HKUST Fok Ying Tung Res Inst, Ctr Green Prod & Proc Technol, Guangzhou 511458, Guangdong, Peoples R China

[3] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116023, Peoples R China

[4] Hong Kong Univ Sci & Technol, Dept Chem & Bimol Engn, Hong Kong, Hong Kong, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2012年 / 76卷

关键词：

Magnetite; Hollow sphere; High capacity; Anode materials; Lithium ion batteries; ANODE MATERIAL; LI-ION; ELECTRODE MATERIALS; HIGH-CAPACITY; PRECURSOR ROUTE; HIGH-POWER; LITHIUM; PERFORMANCE; COMPOSITE; NANOCRYSTALS;

D O I：

10.1016/j.electacta.2012.05.071

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Monodispersed hollow Fe3O4 spheres with different diameters and shell thickness were synthesized by a simple solvothermal process and were investigated as anode materials for lithium ion batteries (LIBs).The shell of the hollow spheres exhibited porous structure composed of aggregated Fe3O4 nanoparticles. The composition and morphology of the obtained samples were characterized by X-ray powder diffraction (XRD). Raman spectra, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). A novel formation mechanism was proposed based on the results of time-dependent reactions. The electrochemical tests of the hollow Fe3O4 spheres were performed to determine the reversible capacity, rate and cycling performance as anode materials for LIBs. The Fe3O4 obtained from the reaction at 200 degrees C for 48 h exhibited the best specific capacity and capacity retention and superior rate performance compared to other Fe3O4 spheres, which is ascribed to their reasonable particle size, high crystallinity and hollow spherical structures. Different conductive additive were used to investigate the electrochemical performance of Fe3O4 hollow spheres. The binary conductive additives containing acetylene black (AB) and carbon nanobutes (CNTs) improved the electrochemical performance of the Fe3O4 hollow spheres obviously. The results reveal that there is a synergistic effect of the particle size, crystallinity and conductive agents on the electrochemical properties of the hollow Fe3O4 spheres. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：495 / 503

页数：9

共 59 条

[1] Nanostructured Fe3O4/SWNT Electrode: Binder-Free and High-Rate Li-Ion Anode [J].

Ban, Chunmei ;

Wu, Zhuangchun ;

Gillaspie, Dane T. ;

Chen, Le ;

Yan, Yanfa ;

Blackburn, Jeffrey L. ;

Dillon, Anne C. .

ADVANCED MATERIALS, 2010, 22 (20) :E145-+

[2] Enhanced rate performance and cyclic stability of Fe3O4-graphene nanocomposites for Li ion battery anodes [J].

Behera, Shantanu K. .

CHEMICAL COMMUNICATIONS, 2011, 47 (37) :10371-10373

[3] Beyond Intercalation-Based Li-Ion Batteries: The State of the Art and Challenges of Electrode Materials Reacting Through Conversion Reactions [J].

Cabana, Jordi ;

Monconduit, Laure ;

Larcher, Dominique ;

Rosa Palacin, M. .

ADVANCED MATERIALS, 2010, 22 (35) :E170-E192

[4] Hollow magnetite spheres: Synthesis, characterization, and magnetic properties [J].

Chen, XY ;

Zhang, ZJ ;

Li, XX ;

Shi, CW .

CHEMICAL PHYSICS LETTERS, 2006, 422 (1-3) :294-298

[5] High capacity anode materials for Li-ion batteries based on spinel metal oxides AMn2O4 (A = Co, Ni, and Zn) [J].

Courtel, Fabrice M. ;

Duncan, Hugues ;

Abu-Lebdeh, Yaser ;

Davidson, Isobel J. .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (27) :10206-10218

[6] High-Yield Gas-Liquid Interfacial Synthesis of Highly Dispersed Fe3O4 Nanocrystals and Their Application in Lithium-Ion Batteries [J].

Cui, Zhi-Min ;

Hang, Ling-Yan ;

Song, Wei-Guo ;

Guo, Yu-Guo .

CHEMISTRY OF MATERIALS, 2009, 21 (06) :1162-1166

[7]

deFaria DLA, 1997, J RAMAN SPECTROSC, V28, P873, DOI 10.1002/(SICI)1097-4555(199711)28:11<873::AID-JRS177>3.0.CO

[8]

2-B

[9] Controllable synthesis of spinel nano-ZnMn2O4 via a single source precursor route and its high capacity retention as anode material for lithium ion batteries [J].

Deng, Yuanfu ;

Tang, Shidi ;

Zhang, Qiumei ;

Shi, Zhicong ;

Zhang, Leiting ;

Zhan, Shuzhong ;

Chen, Guohua .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (32) :11987-11995

[10] One-pot synthesis of ZnFe2O4/C hollow spheres as superior anode materials for lithium ion batteries [J].

Deng, Yuanfu ;

Zhang, Qiumei ;

Tang, Shidi ;

Zhang, Leiting ;

Deng, Shengnan ;

Shi, Zhicong ;

Chen, Guohua .

CHEMICAL COMMUNICATIONS, 2011, 47 (24) :6828-6830

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