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US 12,466,728 B1Granted
Method for producing Hydrogen using copper oxide-magnesium aluminate (CuO.MgAl2O4) spinel nanocomposite
AssigneeImam Mohammad Ibn Saud Islamic University
InventorsMohamed Nady Abd El-Hameed Ibrahim, Babiker yagoub Elhadi Abdulkhair, Mohamed Khairy Abdel Fattah Omran
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Abstract
A method of producing hydrogen gas includes hydrolyzing sodium borohydride (NaBH4) at a temperature of from about 20 to about 75 degrees Celsius (° C.) in the presence of a nanocomposite having the general formula CuO·MgAl2O4; and, capturing hydrogen gas evolved as a hydrolysis product. Copper oxide (CuO) represents from about 1 to about 30 weight percent (wt. %) of the total weight of the nanocomposite.
Claims13
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 NaBH4 to 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.
3 more elements
Dependencies are inferred from the claim text.