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

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• 作者：Qiang Liu ; Miao Zhang ; Liang Huang ; Yingru Li ; Ji Chen ; Chun Li ; Gaoquan Shi
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：December 22, 2015
• 年：2015
• 卷：9
• 期：12
• 页码：12320-12326
• 全文大小：511K
• ISSN：1936-086X

文摘

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 卤 17 MPa, ultrahigh fracture energies of 18.29 卤 2.47 MJ m^鈥?, high conductivities of 662 卤 41 S cm^鈥?, and an extremely large breakdown current density of about 11鈥?00 A cm^鈥?. 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.