Nanographene-Constructed Carbon Nanofibers Grown on Graphene Sheets by Chemical Vapor Deposition: High-Performance Anode Materials for Lithium Ion Batteries

被引：261

作者：

Fan, Zhuang-Jun ^{[1
]}

Yan, Jun ^{[1
]}

Wei, Tong ^{[1
]}

Ning, Guo-Qing ^{[2
]}

Zhi, Lin-Jie ^{[3
]}

Liu, Jin-Cheng ^{[1
]}

Cao, Dian-Xue ^{[1
]}

Wang, Gui-Ling ^{[1
]}

Wei, Fei ^{[4
]}

机构：

[1] Harbin Engn Univ, Minist Educ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China

[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

[3] Natl Ctr Nanosci & Technol China, Beijing 100190, Peoples R China

[4] Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green Chem React Engn & Technol, Beijing 100084, Peoples R China

来源：

ACS NANO | 2011年 / 5卷 / 04期

基金：

美国国家科学基金会;

关键词：

graphene nanosheets; carbon nanofibers; lithium ion battery; ELECTROCHEMICAL ENERGY-STORAGE; HYBRID FILMS; MESOPHASE PITCH; GRAPHITE OXIDE; HIGH-CAPACITY; LI STORAGE; COMPOSITES; NANOTUBES; HOLLOW; ELECTRODES;

D O I：

10.1021/nn200195k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the fabrication of 3D carbonaceous material composed of 1D carbon nanofibers (CNF) grown on 2D graphene sheets (GNS) via a CVD approach in a fluidized bed reactor. Nanographene-constructed carbon nanofibers contain many cavities, open tips, and graphene platelets with edges exposed, providing more extra space for Li(+) storage. More interestingly, nanochannels consisting of graphene platelets arrange almost perpendicularly to the fiber axis, which is favorable for lithium Ion diffusion from different orientation In addition, 3D interconnected architectures facilitate the collection and transport of electrons during the cycling process. As a result, the CNF/GNS hybrid material shows high reversible capacity (667 mAh/g), high-rate performance, and cycling,stability, which is superior to those of purE graphene, natural graphite, and carbon nanotubes. The simple,CVD approach offers a new pathway for large-scale production of novel hybrid carbon materials for energy storage.

引用

页码：2787 / 2794

页数：8

共 54 条

[1] Generation of hierarchical meso- and macroporous carbon from mesophase pitch by spinodal decomposition using polymer templates [J].