US 12,006,222 B2
Method for the manufacture of microwave-reduced graphene oxide
Thi Tan Vu, Oviedo (ES); Oscar Perez Vidal, Oviedo Asturias (ES); Juan Jose Arribas, Aviles (ES); David Noriega Perez, Asturias (ES); and Roberto Suarez Sanchez, Aviles Asturias (ES)
Assigned to ArcelorMittal, Luxembourg (LU)
Appl. No. 17/272,779
Filed by ArcelorMittal, Luxembourg (LU)
PCT Filed Jul. 9, 2019, PCT No. PCT/IB2019/055835
§ 371(c)(1), (2) Date Mar. 2, 2021,
PCT Pub. No. WO2020/049373, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. PCT/IB2018/056764 (WO), filed on Sep. 5, 2018.
Prior Publication US 2021/0214232 A1, Jul. 15, 2021
Int. Cl. C01B 32/198 (2017.01); B01J 21/18 (2006.01)
CPC C01B 32/198 (2017.08) [B01J 21/18 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for manufacturing microwave-reduced graphene oxide (MW-rGO) comprising:
A. providing graphene oxide (GO) including at least one layer of graphene including at least 25% by weight of oxygen functional groups;
B. reducing the GO into reduced graphene oxide (rGO) including at least one layer of graphene having between 10 and 25% by weight of oxygen functional groups, using a reducing agent; and
C. reducing the rGO into MW-rGO, including at least one layer of graphene having less than 10% by weight of oxygen functional groups, by microwaving rGO under air atmosphere in presence of a catalyst.