Metal-silica nanocomposites prepared through a single step solution combustion synthesis (SCS)
OwnerSardar Ali, Dharmesh Kumar +3inventors
InventorsSardar Ali, Dharmesh Kumar, Ahmed Gamal, Mahmoud M. Khader, Muftah El-Naas
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Abstract
Provided herein is a novel silica-supported nickel nanocomposite and a novel one-pot solution combustion synthesis of that nanocomposite. The method allows the synthesis of small size nickel nanoparticles (e.g., 3 nm to 40 nm) for which a considerable percentage of nickel is inserted into silica, experiencing strong metal-support interaction. These exceptional physicochemical properties make them desirable for various industrial applications, such as electronic, heterogeneous catalysis as well as conversion and storage of energy.
Claims21
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.
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 fuel is selected from the group consisting of glycine, urea, hydrazine, a hydrazide, a glycol, and citric acid.
Dependencies are inferred from the claim text.