| abstract |
The present invention, produced through a synthesis method including a supercritical carbon dioxide extraction method, includes an active point containing at least one metal oxide and a support on which the active point is supported, wherein the metal oxide is a transition metal on the periodic table ( transition metal (atomic number 21-29, 39-47, 72-79, or 104-108), lanthanide (atomic number 57-71), post-transition metal (atomic number 13, 30 -31, 48-50, 80-84, 112), metalloids (atomic numbers 14, 32-33, 51-52, 85) and combinations thereof, metal oxide catalysts that are oxides of metals selected from the group consisting of provide them |