A three-dimensional sponge of graphene nanoribbons crosslinked by Fe3O4 nanoparticles for Li+ storage

被引：39
|
作者：
Zhao, Xiyu [1 ]
Li, Xinlu [1 ]
Zhang, Shilei [1 ]
Long, Junjun [1 ]
Huang, Yanchun [1 ]
Wang, Ronghua [1 ]
Sha, Junwei [2 ]
机构：
[1] Chongqing Univ, Sch Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2017年 / 5卷 / 45期
基金：
中国国家自然科学基金;
关键词：
CARBON NANOTUBES; ANODE MATERIAL; IN-SITU; LITHIUM; PERFORMANCE; ENERGY; NANOSHEETS; FOAM; NANOSPINDLES; NANOSPHERES;
D O I：
10.1039/c7ta07874a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A three-dimensional sponge of graphene nanoribbons crosslinked by Fe3O4 nanoparticles (NPs), which is denoted as 3D Fe3O4@GNRs, is synthesized using a simple reflux procedure. In this hybrid, GNRs with open and active edges are used as building blocks while Fe3O4 NPs are employed not only as anode materials but as a crosslinking agent to weld GNRs at the joints, resulting in the assembly of a 3D porous sponge. The 3D Fe3O4@GNR hybrid exhibits super-high cycling performance (1700 mA h g(-1) over 100 cycles at 0.1 A g(-1)) and excellent rate capability (1265 mA h g(-1) at 1 A g(-1)), demonstrating a significant advancement in anode active materials with high energy density for lithium ion batteries.
引用
收藏
页码：23592 / 23599
页数：8
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