US 11,885,012 B2
Graphene synthesis
Dong Han Seo, Campbell (AU); Shafique Pineda, Campbell (AU); Zhao Jun Han, Campbell (AU); and Kostyantyn Ostrikov, Campbell (AU)
Assigned to Commonwealth Scientific and Industrial Research Organization, Campbell (AU)
Filed by Commonwealth Scientific and Industrial Research Organisation, Campbell (AU)
Filed on Jun. 8, 2021, as Appl. No. 17/342,235.
Application 17/342,235 is a continuation of application No. 15/752,387, granted, now 11,060,185, previously published as PCT/AU2016/050738, filed on Aug. 12, 2016.
Claims priority of application No. 2015903285 (AU), filed on Aug. 14, 2015.
Prior Publication US 2021/0292891 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C23C 16/26 (2006.01); C23C 16/448 (2006.01); C23C 16/46 (2006.01); C01B 32/186 (2017.01); G01N 27/30 (2006.01); H01M 4/583 (2010.01)
CPC C23C 16/26 (2013.01) [C01B 32/186 (2017.08); C23C 16/4485 (2013.01); C23C 16/463 (2013.01); G01N 27/308 (2013.01); H01M 4/583 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of preparing a deposited graphene in the form of a continuous film comprising the steps of:
sealing a metal substrate and a carbon source in an ambient environment at ambient temperature to create a sealed ambient environment comprising a sealed ambient atmosphere;
heating the sealed ambient environment to a temperature which produces carbon vapour from the carbon source such that the carbon vapour comes into contact with a surface of the metal substrate;
maintaining the temperature at 875° C. or above for a time sufficient to form a graphene lattice and then cooling the metal substrate at a controlled rate to form a deposited graphene continuous film on the surface of the metal substrate that contacts the carbon vapour;
wherein the carbon source is a liquid or solid biomass, is derived from a biomass, or is a purified biomass;
wherein the entire carbon source is not in contact with the metal substrate;
wherein the method is free from the use of compressed or feedstock gases;
wherein the sealed ambient atmosphere consists of air at atmospheric pressure or a vacuum; and
wherein the metal is a transition metal substrate.