The researchers have produced robust graphene oxide (GO) fibers with complex architectures and exceptional mechanical and electrical properties. The GO fibers have extremely large elongation to fracture (up to 76%), high toughness (up to 17 J/m3), and attractive macroscopic properties, such as uniform circular cross-section, smooth surface, and great knotability.
The GO fibers can be used for smart textiles and as a heating element. The films could be used for thin transparent coatings on different hydrophilic surfaces. This technology can save a considerable amount of energy for film formation. It can be even coupled to take advantage of low-grade waste heat. The technology could also be used to produce specialty carbon fibers and GO membranes for gas and organic solvent separation technology.
US patent 9,284,193. Inventors: M. Terrones, R. Cruz-Silva, A. Morelos-Gomez, M. Endo, N. Perea-Lopez, A.L. Elias. “Method for preparing super-tough large area graphene oxide films, graphene oxide Fibers and electrically conductive graphene fibers.”