Preparation of alumina – graphene composites by long pulsed laser ablation
By Voranuch Thongpool, Akapong Phunpueok,Veeradate Piriyawong, Supanee Limsuwan and Pichet Limsuwan
In this work, the alumina – graphene composites were fabricated by laser ablation of graphite target in deionized water with alumina nanoparticles suspension using pulsed Nd:YAG laser. The mechanism of the graphene formation is derived from the insertion of alumina nanoparticles into the interlayer spacing of graphite which expand during laser heating. The synthesized alumina – graphene composites were characterized by field emission scanning electron microscope (FESEM), EDX, and UV-visible spectrophotometer.