High-Quality Graphene Ribbons Prepared from Graphene Oxide Hydrogels and Their Application for Strain Sensors

被引：146
作者：
Liu, Qiang [1 ]
Zhang, Miao [1 ]
Huang, Liang [1 ]
Li, Yingru [1 ]
Chen, Ji [1 ]
Li, Chun [1 ]
Shi, Gaoquan [1 ]
机构：
[1] Tsinghua Univ, Dept Chem, Country Collaborat Innovat Ctr Nanomat Sci & Engn, Beijing 100084, Peoples R China
来源：
ACS NANO | 2015年 / 9卷 / 12期
基金：
中国国家自然科学基金;
关键词：
reduced graphene oxide; ribbon; dry spinning; hydrogel; strain sensor; LIQUID-CRYSTALS; FIBERS; GRAPHITE; ULTRASTRONG; NANOSHEETS; FILMS;
D O I：
10.1021/acsnano.5b05609
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Reduced graphene oxide (rGO) ribbons with arbitrary lengths were prepared by dry spinning of the hydrogels of graphene oxide (GO) formed via thermal annealing GO dispersions, and followed by chemical reduction. These rGO ribbons are flexible, having ultrahigh tensile strengths of 582 +/- 17 MPa, ultrahigh fracture energies of 18.29 +/- 2.47 MJ m(-3), high conductivities of 662 +/- 41 S cm(-1), and an extremely large breakdown current density of about 11 500 A cm(-2). Strain sensors based on the meshes of these ribbons showed sensitive recoverable responses to different tensile strains with excellent cycling stability, promising for the applications in wearable devices.
引用
收藏
页码：12320 / 12326
页数：7
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