Synthesis of the RGO/Al2O3 core-shell nanocomposite flakes and characterization of their unique electrostatic properties using zeta potential measurements

- We successfully synthesized the RGO/Al2O3 core-shell nanocomposite flakes using sol-gel method.
- Al2O3 nanoparticles were covalently bonded to GO surface.
- Al2O3 nanoparticles fully covered RGO surface (forming the core-shell system) and acted as a spreader between individual flakes.
- Al2O3 nanoparticles modified the electrostatic properties of GO.
- CO species of GO were not taking part in the formation of electrostatic surface charge.