/ Mesoporous silica/ceria-silica composite and the preparation method thereof

摘要

the present invention is meso porous silica / ceria-silica complex and meso porous silica / ceria-relates to a method for manufacturing a silica, and more specifically to mesoporous silica and the meso a hexagonal or cubic structure is composed of a ceria of the hexagonal-like structure provided on the surface and pores of the porous silica, the oxidation state of ceria (oxidation state) is Ce ^{4 +} and Ce ^{3 +} meso porous silica / ceria, characterized in that the - present invention relates to silica composite ;