Bulk turbostratic graphene deposition on aluminum substrates via high-pressure graphite blasting

This work presents the mechanical exfoliation of graphite into graphene nanoplatelets via high-pressure blasting onto metallic substrates. After ensuring successful graphene deposition via Raman spectroscopy, the substrates are then tested to detect the enhancement of their thermal, optical, and electrochemical properties. The process is facile and straightforward, with no special requirements in terms of energy addition or isolation and is capable of depositing graphene over large surface areas. The application of such approach is especially suitable for solar thermal absorbers enhancement, as the thermal, optical, and corrosion resistance properties of metallic plates made of copper or aluminum benefit from the deposition at the macroscale.