Patent ID: 11939220
Assignee: UCL BUSINESS LTD
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  H  Y | IPC B  C  H

Claim 7:
8. A method according to claim 1, wherein the at least one transition metal salt comprises a first transition metal salt and a second transition metal salt, wherein the first transition metal salt is present in an amount below a stoichiometric charge on the graphene sheet, such that the contacting step causes reduction of the first transition metal salt by the graphene sheet to form the transition metal nanoparticles which are first transition metal nanoparticles; and
a second contacting step in which the graphene sheet is brought into contact with a second transition metal salt, the second transition metal salt comprising a different transition metal to the first transition metal salt, such that the second contacting step causes reduction of the second transition metal salt by the graphene sheet to form second transition metal nanoparticles.