US Patent 11973211 Process for producing metal nanowires and nanowire-graphene hybrid particulates

Disclosed is a process for producing graphene-metal nanowire hybrid material, comprising: (A) preparing a catalyst metal-coated mixture mass, which includes mixing graphene sheets with source metal particles to form a mixture and depositing a nanoscaled catalytic metal onto surfaces of the graphene sheets and/or metal particles; and (B) exposing the catalyst metal-coated mixture mass to a high temperature environment (preferably from 100° C. to 2,500° C.) for a period of time sufficient to enable a catalytic metal-catalyzed growth of multiple metal nanowires using the source metal particles as a feed material to form the graphene-metal nanowire hybrid material composition. An optional etching or separating procedure may be conducted to remove catalytic metal or graphene from the metal nanowires.