Vacuum-assisted synthesis of graphene from thermal exfoliation and reduction of graphite oxide

被引：187
作者：
Zhang, Hao-Bin [1 ,2 ]
Wang, Ji-Wen [2 ]
Yan, Qing [2 ]
Zheng, Wen-Ge [2 ]
Chen, Cao [2 ]
Yu, Zhong-Zhen [1 ]
机构：
[1] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Dept Polymer Engn, Beijing Key Lab Preparat & Proc Novel Polymer Mat, Beijing 100029, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Div Polymers & Composites, Ningbo Key Lab Polymer Mat, Ningbo 315201, Zhejiang, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 14期
关键词：
FUNCTIONALIZED GRAPHENE; AQUEOUS DISPERSIONS; CARBON NANOTUBES; SHEETS; FILMS; NANOSHEETS; NANOCOMPOSITES; AREA;
D O I：
10.1039/c1jm10099h
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：
We report a vacuum-assisted method for thermal exfoliation and in situ reduction of graphite oxide in large quantity at a temperature as low as 135 degrees C. The resulting graphene sheets contain only few-layered sheets with an average thickness of 0.9 nm, and their specific surface area (758 m(2) g(-1)) is comparable to that of conventional graphene generated at 1050 degrees C at atmospheric pressure (700 m(2) g(-1)). The in situ thermal reduction during the exfoliation process was confirmed by the increased C/O atomic ratio compared to that of graphite oxide. The restoration of the graphitic sp 2 network makes it highly efficient in improving the electrical conductivity of polymers at a low graphene loading.
引用
收藏
页码：5392 / 5397
页数：6
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