High-Quality Graphene Ribbons Prepared from Graphene Oxide Hydrogels and Their Application for Strain Sensors.
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.
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Qiang
Q
Liu
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Miao
M
Zhang
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Liang
L
Huang
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Yingru
Y
Li
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Ji
J
Chen
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Chun
C
Li
Country Collaborative Innovation Center for Nanomaterial Science and Engineering, Department of Chemistry, Tsinghua University , Beijing 100084, People's Republic of China.
Gaoquan
G
Shi
D004553:Electric Conductivity; D004867:Equipment Design; D006108:Graphite / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry*; D008422:Materials Testing; D036103:Nanotechnology; D010087:Oxides / Q000737:chemistry*; D013718:Tensile Strength
D020100:Hydrogels; D010087:Oxides; D006108:Graphite
dry spinning; hydrogel; reduced graphene oxide; ribbon; strain sensor