Compositions and Methods Related to Doped Graphene Derived from Asphaltenes

Patent metadata

Field	Value
Publication number	US-2016304350-A1
Application number	US-201514960324-A
Country	US
Kind code	A1
Filing date	Dec 4, 2015
Priority date	Dec 4, 2014
Publication date	Oct 20, 2016
Grant date	—

Abstract

Compositions and methods directed to producing metal-doped graphene and the metal-doped graphene derivatives from pitch are disclosed.

First claim

1 . A method of making a metal-doped graphene comprising:
preparing an asphaltene thin film on a metal catalyst substrate; and heating the asphaltene thin film/catalyst at 400° C. or higher and at pressures of 1×10 −3 Torr or higher forming a metal-doped graphene.

2 . The method of claim 1 , further comprising removing metal catalyst from the metal-doped graphene by etching or lifting.

3 . The method of claim 1 , wherein the catalyst comprises one or more metal selected from Mo, Zn, Cd, Ti, Ni, V, Fe, Mn, Cr and Co.

4 . The method of claim 1 , wherein the asphaltene thin film is heated under an H 2 /Ar gas flow.

5 . The method of claim 1 , wherein the asphaltene thin film is heated in a tube furnace.

6 . A metal-doped graphene produced by the method of claim 1 .

7 . A metal-doped graphene produced by the method of claim 2 .

8 . A metal-doped graphene produced by the method of claim 3 .

9 . A metal-doped graphene produced by the method of claim 4 .

10 . A metal-doped graphene produced by the method of claim 5 .

Assignees

• Univ Texas

Inventors

• Deemer Eva M
• Chianelli Russell R

Classifications

• C01B32/184 Primary

  Preparation · CPC title

• Y10S977/842

  for carbon nanotubes or fullerenes · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• H01B1/04

  mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title