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Nanostructured reduced graphene oxide/Fe2O3 composite as a high-performance anode material for lithium ion batteries

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WOS被引频次:834
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成果类型:
期刊论文
作者:
Zhu, Xianjun;Zhu, Yanwu;Murali, Shanthi;Stollers, Meryl D.;Ruoff, Rodney S.
通讯作者:
Ruoff, RS
作者机构:
[Murali, Shanthi; Ruoff, Rodney S.; Zhu, Yanwu; Zhu, Xianjun; Stollers, Meryl D.] Department of Mechanical Engineering, Texas Materials Institute, University of Texas at Austin, Austin, TX 78712, United States
[Zhu, Xianjun] College of Chemistry, Central China Normal University, 152 Luoyu Road, Hubei, Wuhan 430079, China
通讯机构:
[Ruoff, Rodney S.] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA.
语种:
英文
关键词:
Anode material - Charge capacities - Cycling performance - Electrochemical performance - Electrode material - Fe2O3 - High-performance anode materials - homogeneous precipitation - Large-scale production - Li-ion batteries - lithium ion battery - Nano-structured - Oxide nanoparticles - Rate capabilities - reduced graphene oxide - Specific capacities - Subsequent reduction - Synergistic effect - Total mass - Two-step synthesis
期刊:
ACS NANO
ISSN:
1936-0851
年:
2011
卷:
5
期:
4
页码:
3333-3338
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:化学;WOS学科类别:Chemistry, Multidisciplinary;Chemistry, Physical;Materials Science, Multidisciplinary;Nanoscience & Nanotechnology
入藏号:
WOS:000289742100107;EI:20111813952496;PMID:21443243
基金类别:
University of Texas at Austin; Texas Nanotechnology Research Superiority Initiative (TNRSI)/SWAN; Department of Energy Office of Science [DEFG02-07ER46377]; National Science Foundation [CBET-0553649]; China Scholarship Council; SRF for ROCS, SEM
机构署名:
本校为第一机构
院系归属:
化学学院
摘要:
Reduced graphene oxide/Fe<inf>2</inf>O<inf>3</inf> composite was prepared using a facile two-step synthesis by homogeneous precipitation and subsequent reduction of the G-O with hydrazine under microwave irradiation to yield reduced graphene oxide (RG-O) platelets decorated with Fe<inf>2</inf>O<inf>3</inf> nanoparticles. As an anode material for Li-ion batteries, the RG-O/Fe <inf>2</inf>O<inf>3</inf> composite exhibited discharge and charge capacities of 1693 and 1227 mAh/g, respectively, normalized to the mass of Fe <inf>2</inf>O<inf>3</inf> in the composite (and &sim;1355 and 982 mAh/g, respectively, based on the total mass of the composite), with good cycling performance and rate capability. Characterization shows that the Fe <inf>2</inf>O<inf>3</inf> nanoparticles are uniformly distributed on the surface of the RG-O platelets in the composite. The total specific capacity of RG-O/Fe<inf>2</inf>O<inf>3</inf> is higher than the sum of pure RG-O and nanoparticle Fe<inf>2</inf>O<inf>3</inf>, indicating a positive synergistic effect of RG-O and Fe<inf>2</inf>O<inf>3</inf> on the improvement of electrochemical performance. The synthesis approach presents a promising route for a large-scale production of RG-O platelet/metal oxide nanoparticle composites as electrode materials for Li-ion batteries. &copy;2011 American Chemical Society.
参考文献:
Arico AS, 2005, NAT MATER, V4, P366, DOI 10.1038/nmat1368
Buqa H, 2005, J ELECTROCHEM SOC, V152, pA474, DOI 10.1149/1.1851055
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