US 12,234,157 B2
Electrocatalysts comprising transition metals and chalcogen for oxygen evolution reactions (OER) and manufacturing thereof
Jehad Abed, Toronto (CA); Steven Thorpe, Picton (CA); and Edward Sargent, Toronto (CA)
Assigned to THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO, Toronto (CA); and TOTALENERGIES ONETECH, Courbevoie (FR)
Filed by THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO, Toronto (CA); and TOTALENERGIES ONETECH, Courbevoie (FR)
Filed on Dec. 2, 2020, as Appl. No. 17/109,948.
Claims priority of provisional application 63/116,486, filed on Nov. 20, 2020.
Claims priority of provisional application 62/943,037, filed on Dec. 3, 2019.
Prior Publication US 2021/0162392 A1, Jun. 3, 2021
Int. Cl. C01G 53/00 (2006.01); B82Y 40/00 (2011.01); C01B 19/00 (2006.01); C25B 1/04 (2021.01); C25B 3/26 (2021.01); C25B 11/091 (2021.01); H01M 4/90 (2006.01)
CPC C01G 53/00 (2013.01) [B82Y 40/00 (2013.01); C01B 19/002 (2013.01); C25B 1/04 (2013.01); C25B 3/26 (2021.01); C25B 11/091 (2021.01); H01M 4/9041 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A process for producing a nanochalcogenide for use in electrocatalysis, comprising:
subjecting at least two transition metals and at least one chalcogen to cryogenic milling to produce an alloyed chalcogenide material;
subjecting the alloyed chalcogenide material to surfactant-assisted milling to produce a slurry comprising a nanochalcogenide; and
separating the nanochalcogenide from the slurry,
wherein the surfactant-assisted milling comprises surfactant-assisted ball milling performed in the presence of at least one surfactant and a solvent; and
wherein the solvent comprises an alcohol and the least one surfactant comprises diphenylphosphoryl acid (DPPA), or oleic acid, or CTAB surfactant.