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

Qiang Liu; Miao Zhang; Liang Huang; Yingru Li; Ji Chen; Chun Li; Gaoquan Shi

doi:10.1021/acsnano.5b05609

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

ACS Nano. 2015 Dec 22;9(12):12320-6. doi: 10.1021/acsnano.5b05609. Epub 2015 Oct 21.

Authors

Qiang Liu¹, Miao Zhang¹, Liang Huang¹, Yingru Li¹, Ji Chen¹, Chun Li¹, Gaoquan Shi¹

Affiliation

¹ Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.

PMID: 26481766
DOI: 10.1021/acsnano.5b05609

Abstract

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.

Keywords: dry spinning; hydrogel; reduced graphene oxide; ribbon; strain sensor.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electric Conductivity
Equipment Design
Graphite / chemistry*
Hydrogels / chemistry*
Materials Testing
Nanotechnology
Oxides / chemistry*
Tensile Strength

Substances

Hydrogels
Oxides
Graphite