Metallic nanoparticle catalysts embedded in porous oxide support, which show high catalytic activity even at low temperatures
AssigneeQuantum Cat Co., Ltd.
InventorShin Hyun KANG
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Abstract
The present invention relates to a metallic nanoparticle catalyst, and more particularly, to a porous catalyst in which metallic nanoparticles are embedded in a porous oxide support, and a method for preparing the porous catalyst. To this end, a porous catalyst composition having metallic nanoparticles of the present invention includes an oxide matrix structure having mesopores and micropores; and metal or metal oxide nanoparticles embedded in the oxide matrix structure having the mesopores and micropores. Thus, metallic nanoparticle catalysts having high activity even at low temperature are realized.
Claims15
A porous catalyst composition having metallic nanoparticles comprising:
- an oxide matrix structure having mesopores and micropores;
- and
- metal or metal oxide nanoparticles embedded in the oxide matrix structure having the mesopores and micropores.
A method for preparing a porous catalyst composition having metallic nanoparticles, comprising:
- a step of covering metallic nanoparticles containing at least any one of a metal and a metal oxide with a stabilizer to stabilize the metallic nanoparticles and then binding a polymer to surfaces of the metallic nanoparticles to functionalize the metallic nanoparticles (Step 1);
- a step of mixing an oxide precursor with a solution in which the functionalized metallic nanoparticles and an activator are mixed and dispersed, thereby synthesizing a metallic nanoparticle dispersion embedded in a porous oxide support (Step 2);
- and
- a step of calcining the metallic nanoparticle dispersion (Step 3).
Dependencies are inferred from the claim text.