US 12,312,699 B1
Boron-doped Ag2WO4 nanoparticles for water electrolysis
Mohamed Khairy Abdel Fattah Omran, Riyadh (SA); Mohamed Mokhtar Mohamed, Riyadh (SA); Salah Ahmed Ibrahim Eid, Riyadh (SA); and Babiker Yagoub Elhadi Abdulkhair, Riyadh (SA)
Assigned to IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed by IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed on Oct. 30, 2024, as Appl. No. 18/931,861.
Int. Cl. C25B 11/077 (2021.01); C25B 1/04 (2021.01); C25B 11/037 (2021.01); C25B 11/052 (2021.01); C25B 11/093 (2021.01)
CPC C25B 11/077 (2021.01) [C25B 1/04 (2013.01); C25B 11/037 (2021.01); C25B 11/052 (2021.01); C25B 11/093 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A method for water electrolysis, the method comprising:
applying a voltage to an aqueous solution in an electrochemical cell comprising a working electrode at least partially coated with a catalyst composition comprising boron-doped Ag2WO4 nanoparticles, wherein the amount of boron present in the boron-doped Ag2WO4 nanoparticles is in a range from 5 to 35 wt. % of the total weight of the boron-doped Ag2WO4 nanoparticles,
wherein during the applying hydrogen evolves from the aqueous solution due to a hydrogen evolution reaction and oxygen evolves from the aqueous solution due to an oxygen evolution reaction, and
wherein the working electrode during the applying has an overpotential of less than or equal to 500 mV at a current density of 10 mA·cm−2 for the oxygen evolution reaction.