Ultrastrong Graphene-Based Fibers with Increased Elongation.
A new method to prepare graphene-based fibers with ultrahigh tensile strength, conductivity, and increased elongation is reported. It includes wet-spinning the mixture of GO aqueous dispersion with phenolic resin solution in a newly developed coagulation bath, followed by annealing. The introduced phenolic carbon increased densification of graphene fibers through reducing defects and increased interfacial interaction among graphene sheets by forming new C-C bonds, thus resulting in the increasing of stiffness, toughness, and conductivity simultaneously.
College of Materials Science and Engineering, Beijing University of Chemical and Technology , Beijing 100029, China.|SINOPEC Beijing Research Institute of Chemical Industry , Beijing 100013, China.
Mochen
M
Li
SINOPEC Beijing Research Institute of Chemical Industry , Beijing 100013, China.
Xiaohong
X
Zhang
SINOPEC Beijing Research Institute of Chemical Industry , Beijing 100013, China.
Xiang
X
Wang
SINOPEC Beijing Research Institute of Chemical Industry , Beijing 100013, China.
Yue
Y
Ru
College of Materials Science and Engineering, Beijing University of Chemical and Technology , Beijing 100029, China.|SINOPEC Beijing Research Institute of Chemical Industry , Beijing 100013, China.
Jinliang
J
Qiao
Graphene fiber; conductivity; graphene oxide; phenolic carbon; strength