Provided is a method for manufacturing a mesoporous inorganic oxide, which includes preparing a mixture of a metal salt selected from the group consisting of at least one kind of alkali metal-containing compound, at least one kind of alkaline earth metal-containing compound, and any combination thereof and an amorphous inorganic oxide; sintering the mixture of a metal salt and an amorphous inorganic oxide; and removing the metal salt contained in the sintered mixture, and a mesoporous inorganic oxide that is manufactured by the above method and is composed of an aggregate of inorganic oxide particles having a size of from 2 nm to 5 nm.

According to the present invention, it is possible to provide a method for manufacturing a mesoporous inorganic oxide which has a simplified manufacturing process, has a short period of manufacturing time of about 1 day, does not generate secondary environmental contaminants to be environmentally friendly, and enables mass production, and a mesoporous inorganic oxide which has a dramatically decreased particle size and thus has an increased specific surface area and increased active sites.

The present invention relates to a getter composition comprising magnesium oxide particle doped with alkali metal, a getter layer comprising the same, and an organic electronic device comprising the getter layer. The getter composition comprising magnesium oxide particle doped with alkali metal according to the present invention has remarkably improved hygroscopicity simultaneously with maintaining transparency of the previously used magnesium oxide particles, and thus, is used in a getter layer comprising the same and an organic electronic device comprising the getter layer, thereby effectively protecting water sensitive devices.

Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.

A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—Kα X-ray diffraction chart of the dielectric film, a half width of the diffraction peak of (111) is in a range of from 0.3° to 2.0°.

A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—Kα X-ray diffraction chart of the dielectric film, a half width of the diffraction peak of (111) is in a range of from 0.3° to 2.0°.

Methods for producing ethylene using nanowires as heterogeneous catalysts are provided. The method includes, for example, an oxidative coupling of methane catalyzed by nanowires to provide ethylene.

Methods for producing ethylene using nanowires as heterogeneous catalysts are provided. The method includes, for example, an oxidative coupling of methane catalyzed by nanowires to provide ethylene.

The present invention relates to a powder for sintering containing a mixture of a metal powder and metal oxide particles having an average particle diameter of 5 nm or more and 200 nm or less, and to a sintered body.

The present invention relates to a powder for sintering containing a mixture of a metal powder and metal oxide particles having an average particle diameter of 5 nm or more and 200 nm or less, and to a sintered body.

A magnesium electrochemical cell having a positive electrode containing as an active ingredient, a material of formula [V.sub.2O.sub.5].sub.c [M.sub.aO.sub.b].sub.d and/or a material of formula [V.sub.2O.sub.5].sub.c[M.sub.aO.sub.b].sub.d[MgX.sub.e].sub.g in a metastable structural and morphological phase is provided. In the formulas M is an element selected from the group consisting of P, B, Si, Ge and Mo; and X is O or a halide.