Hydrogen passivation accelerated conversion of cotton to graphene

Abstract

Graphene has attracted wide attention since the last century due to its outstanding properties and the vast application potential in various fields. However, the large-scale fabrication of high-quality single-layer graphene still needs to be improved in aspects of raw materials and manufacturing. The conversion of renewable biomass materials to graphene has been regarded as a feasible idea to scale up graphene fabrication. Herein, an intelligent strategy of cost-effectively deriving high-quality single-layer graphene from cotton via hydrogen passivation-aided exfoliation is proposed. Cotton is found to be a promising raw material for graphene fabrication due to its high sustainability, low cost, incredible structure, and feasible chemical composition. On the other hand, hydrogen passivation method strongly accelerated shear exfoliation and hindered graphene agglomeration, which allows a high transfer rate from cotton to graphene.