High-purity few-layer graphene from plasma pyrolysis of methane as conductive additive for LiFePO4 lithium ion battery
By Wang, Feng; Wang, Fangfang; Hong, Ruoyu; Lv, Xuesong; Zheng, Ying
Published in Journal of Materials Research and Technology
Journal of Materials Research and Technology
2020
Abstract
Graphene is one of the most attractive materials because of its outstanding properties. Here we report a straightforward and environmentally friendly process, in which the few-layer graphene is continuously prepared in gas phase by one-step pyrolysis of methane by alternative-current arc plasma under substrate free and atmospheric conditions. The graphene is generated in high purity with the yield of more than 2 g/h. No further operations such as centrifugation, purification, sonication, and drying are needed. The synthesized graphene powder mainly consists of 1