Graphene material-metal nanocomposites and processes of making and using same
AssigneeThe Research Foundation for The State University of New York
InventorShenqiang Ren
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Abstract
Graphene material-metal nanocomposites having a metal core with one or more graphene material layers disposed on the metal core. The nanocomposites may be formed by contacting metal nanowires and one or more graphene material and/or graphene material precursor in a dispersion. The nanocomposites may be used for form inks for coating or printing conductive elements or as conductors in various articles of manufacture. An article of manufacture may be an electrical device or an electronic device.
Claims10
A process of making a graphene material-metal nanocomposite comprising:
- forming a layer of graphene material and/or graphene-precursor material on at least a portion of a surface of or all of the surfaces of metal nanowires, comprising forming a dispersion of a metal powder or a metal precursor and a graphene material and/or graphene-precursor material, wherein the forming the dispersion comprises:
- dispersing the metal powder or the metal precursor in a first dispersant, and
- dispersing the graphene material and/or graphene-precursor material in a second dispersant,
- adding the metal precursor dispersion to the graphene material or graphene-precursor material dispersion;
- and
- aligning the metal nanowires via hot pressing, wherein the aligning is performed at a temperature of about 300° C. to about 1000° C. and/or the aligning is when 80% or more of a dimension of individual metal cores in the nanocomposite are within 5 degrees or less of a dimension of the aligned nanocomposite;
- and
- optionally, calcining the metal nanowires comprising a layer of graphene-precursor material, wherein the graphene material-metal nanocomposite is formed.
A process of making a graphene material-metal nanocomposite comprising:
- forming a layer of graphene material and/or graphene-precursor material on at least a portion of a surface of or all of the surfaces of metal nanowires;
- and
- aligning the metal nanowires via hot pressing, wherein the aligning is performed at a temperature of about 300° C. to about 1000° C. and/or the aligning is when 80% or more of a dimension of individual metal cores in the nanocomposite are within 5 degrees or less of a dimension of the aligned nanocomposite;
- and
- optionally, calcining the metal nanowires comprising a layer of graphene-precursor material,
- wherein the graphene material-metal nanocomposite is formed.
Dependencies are inferred from the claim text.