Patent ID: 11958748
Assignee: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Materials, metallurgy (Chemistry)
Classification: CPC A  C  B | IPC B  C

Claim 7:
8. A process for preparing an ice nucleating composite
the process comprising the steps of:
preparing an aqueous dispersed graphene oxide solution;
adding the aqueous solution of graphene oxide to ethanol, ammonium hydroxide and tetraethyl orthosilicate forming a homogenous mixture;
sonicating the homogenous mixture to obtain a sonicated mixture;
heating the sonicated mixture in an autoclave for hydrothermal synthesis thus obtaining the ice nucleating composite of an interconnected 3D porous composite of reduced graphene oxide (rGO) sheets and silicon dioxide nanoparticles;
rinsing the ice nucleating composite with deionised water; and
freeze-drying the composite to preserve the 3D micro-structure.