Microwave-assisted simultaneous reduction and titanate treatment of graphene oxide

被引：41
|
作者：
Li, Jing [1 ]
Yang, Zhenzhen [1 ]
Qiu, Hanxun [1 ]
Dai, Yigang [2 ]
Zheng, Qingbin [1 ]
Zheng, Guang-Ping [3 ,4 ]
Yang, Junhe [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China
[2] Baoshan Iron & Steel Co Ltd, Res Inst, Shanghai 201900, Peoples R China
[3] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
[4] Hong Kong Polytech Univ, Shenzhen Res Inst, Kowloon, Hong Kong, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 37期
关键词：
ELECTRICAL-CONDUCTIVITY; AQUEOUS DISPERSIONS; CARBON NANOTUBES; COUPLING AGENT; GRAPHITE OXIDE; NANOPLATELETS; COMPOSITES;
D O I：
10.1039/c3ta12228j
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：
Simultaneous reduction and functionalization of graphene oxide was conducted with the assistance of microwave irradiation. A titanate coupling agent was utilized for the functionalization of graphene. TEM, XPS and FTIR were employed to characterize the changes in graphene morphology and chemistry. The results suggested that the titanate coupling agent was bonded covalently on the graphene surfaces. The surface of graphene remained hydrophilic after the reduction of graphene oxide, while the electrical conductivity of graphene was partially restored. Titanate functionalized graphene was mixed with the waterborne polyurethane (PU) to prepare nanocomposites. The graphene/PU nanocomposites exhibited a conductive percolation threshold of 0.1 wt%.
引用
收藏
页码：11451 / 11456
页数：6
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