Yarns of carbon nanotubes and reduced graphene oxides

Carbon nanotubes (CNTs) and graphene are nanocarbon materials with excellent mechanical and electrical properties. It is a great challenge to develop practical applications of these nanocarbons. One of the methods to make use of their excellent properties on the macroscopic scale is to assemble them into yarns, because the yarn can achieve higher orientation and higher content of nanocarbon. The establishment of the practical fabrication processes of the yarns of CNT and graphene (mainly reduced graphene oxide, rGO) is strongly demanded. The present review focuses on the fabrication processes of CNT and rGO yarns by analyzing respective procedures to contribute the development of practical applications of these yarns. The effectiveness of the fabrication processes is discussed based on the obtained mechanical properties and electrical conductivities. [Display omitted]