METHOD FOR PREPARING NANO METAL/METAL OXIDE LOADED MOLECULAR SIEVE CATALYST

摘要

The present disclosure provides a method for preparing a molecular sieve catalyst. A water-in-oil micro-emulsion including a continuous phase containing an organic solvent and a dispersed phase containing an aqueous solution containing one or more metal salts and a water-soluble organic carbon source is prepared, hydrolyzed, and azeotropically distilled to form a mixture solution. The mixture solution is heated to carbonize the water-soluble organic carbon source to form nanoparticles each having a core-shell structure including a carbon-shelled metal-oxide. The nanoparticles containing the carbon-shelled metal-oxide are dispersed in a molecular sieve precursor solution. A nanoparticle-loaded molecular sieve is formed from the molecular sieve precursor solution containing the nanoparticles, and then calcined to remove carbon there-from to form a metal-oxide loaded molecular sieve.

主权项

1. A method for preparing a molecular sieve catalyst, comprising:
preparing a water-in-oil micro-emulsion including a continuous phase containing an organic solvent and a dispersed phase containing an aqueous solution containing one or more metal salts and a water-soluble organic carbon source; hydrolyzing and azeotropically distilling the water-in-oil micro-emulsion to form a mixture solution; heating the mixture solution to carbonize the water-soluble organic carbon source to form nanoparticles each having a core-shell structure including carbon-shelled metal-oxide; dispersing the nanoparticles containing the carbon-shelled metal-oxide in a molecular sieve precursor solution; forming a nanoparticle-loaded molecular sieve from the molecular sieve precursor solution containing the nanoparticles; and calcining the nanoparticle-loaded molecular sieve to remove carbon from the nanoparticles containing the carbon-shelled metal-oxide and to form a metal-oxide loaded molecular sieve.