	US 12,466,728 B1
	Method for producing Hydrogen using copper oxide-magnesium aluminate (CuO.MgAl₂O₄) spinel nanocomposite
Mohamed Nady Abd El-Hameed Ibrahim, Riyadh (SA); Babiker yagoub Elhadi Abdulkhair, Riyadh (SA); and Mohamed Khairy Abdel Fattah Omran, Riyadh (SA)
Assigned to IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed by IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed on Nov. 24, 2024, as Appl. No. 18/957,808.
Int. Cl. C01B 3/04 (2006.01); B01J 23/72 (2006.01); B01J 37/08 (2006.01)

CPC C01B 3/04 (2013.01) [B01J 23/72 (2013.01); B01J 37/08 (2013.01); B01J 2523/17 (2013.01); B01J 2523/22 (2013.01); B01J 2523/31 (2013.01)]

13 Claims

1. A method of producing hydrogen gas comprising:

hydrolyzing sodium borohydride (NaBH₄) at a temperature in a range of from 30 to 50° C. in the presence of water and a nanocomposite of formula CuO·MgAl₂O₄, thereby generating hydrogen gas at a rate of from 600 to 750 mL/min/g; and,

capturing hydrogen gas formed by the hydrolyzing,

wherein a weight ratio of the NaBH₄to the nanocomposite in the hydrolyzing is in a range from 2:1 to 4:1,

wherein the nanocomposite comprises CuO in a range of from 2.5 to 20 wt. %, relative to a total nanocomposite weight,

wherein the nanocomposite has a median volume particle size (Dv50) in a range of from 25 to 35 nm, determined by scanning electron microscope analysis.