US 11,939,220 B2
Nanomaterial preparation method
Chris Howard, London (GB); Rhodri Jervis, London (GB); Daniel Brett, London (GB); Gyen Angel, Hertfordshire (GB); Patrick Cullen, London (GB); and Chris Gibbs, Suffolk (GB)
Assigned to UCL BUSINESS LTD, London (GB)
Appl. No. 16/969,955
Filed by UCL BUSINESS LTD, London (GB)
PCT Filed Feb. 13, 2019, PCT No. PCT/EP2019/053521
§ 371(c)(1), (2) Date Aug. 13, 2020,
PCT Pub. No. WO2019/158569, PCT Pub. Date Aug. 22, 2019.
Claims priority of application No. 1802316 (GB), filed on Feb. 13, 2018.
Prior Publication US 2020/0407227 A1, Dec. 31, 2020
Int. Cl. C01B 32/194 (2017.01); B01J 21/18 (2006.01); B01J 23/42 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01); B01J 37/16 (2006.01); C01B 32/19 (2017.01); C01B 32/225 (2017.01); H01M 4/86 (2006.01); H01M 4/92 (2006.01)
CPC C01B 32/194 (2017.08) [B01J 21/18 (2013.01); B01J 23/42 (2013.01); B01J 35/0013 (2013.01); B01J 37/0228 (2013.01); B01J 37/04 (2013.01); B01J 37/16 (2013.01); C01B 32/19 (2017.08); C01B 32/225 (2017.08); H01M 4/926 (2013.01); H01M 2004/8689 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method of preparing transition metal nanoparticles on a graphene support, the method comprising the steps of:
providing a tertiary graphite intercalation compound comprising metal ions intercalated between graphene sheets such that the tertiary graphite intercalation compound comprises a graphene sheet having a negative charge and;
contacting the graphene sheet with at least one transition metal salt; such that the contacting step causes reduction of the transition metal salt by the graphene sheet to form the transition metal nanoparticles;
wherein the tertiary intercalation compound has a metal ion to carbon ratio of up to 1:10.