Synthesis of multilayer graphene and hollow multilayer graphene nanoparticles via gaseous detonation

A detonation method is designed to synthesize multilayer graphene (MLG) and hollow MLG nanoparticles quickly is proposed. Experimentally, the detonation is formed by spark-ignition of acetylene with air in a closed cylindrical container. We observe the microstructural morphology of detonation products by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and these sphere nanoparticles and laminated structures were hollow MLG nanoparticles and MLG, respectively. Within the microstructure of products, these images showed typical graphene layers of MLG and hollow MLG nanoparticles are about eight. Raman spectroscopy analysis demonstrates that our experimental method enables to synthesize the graphene layers with the characterization of high graphitization and low dis order. It is helpful for the mechanism investigation of hollow MLG nanoparticles synthesis. (C) 2020 Elsevier B.V. All rights reserved.