US 11,951,457 B2
Metal-silica nanocomposites prepared through a single step solution combustion synthesis (SCS)
Sardar Ali, Doha (QA); Dharmesh Kumar, Doha (QA); Ahmed Gamal, Doha (QA); Mahmoud M. Khader, Doha (QA); and Muftah El-Naas, Doha (QA)
Filed by QATAR UNIVERSITY, Doha (QA)
Filed on Jan. 4, 2022, as Appl. No. 17/568,657.
Claims priority of provisional application 63/133,637, filed on Jan. 4, 2021.
Prior Publication US 2022/0212175 A1, Jul. 7, 2022
Int. Cl. B01J 23/755 (2006.01); B01J 21/08 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01)
CPC B01J 23/755 (2013.01) [B01J 21/08 (2013.01); B01J 35/0013 (2013.01); B01J 35/023 (2013.01); B01J 37/036 (2013.01); B01J 37/04 (2013.01); B01J 37/082 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of fabricating a silica matrix comprising dispersed nickel oxide nanoparticles, the method comprising:
heating a combustion synthesis solution to form a gel, wherein the combustion synthesis solution comprises a silica source, a metal precursor salt, a fuel, and an alcohol;
heating the gel to form a crude silica matrix; and
calcining the crude silica matrix;
wherein the method is a single step combustion synthesis; and
wherein the fuel is selected from the group consisting of glycine, urea, hydrazine, a hydrazide, a glycol, and citric acid.