Patent application number | Description | Published |
20120171108 | METHOD FOR FABRICATING GRAPHENE SHEETS OR GRAPHENE PARTICLES USING SUPERCRITICAL FLUID - A method for fabricating graphene sheets or graphene particles includes (a) dispersing graphene oxide in an alcohol solution to prepare a graphene oxide dispersion solution, (b) reducing the graphene oxide dispersion solution under a supercritical condition to prepare graphene sheets or graphene particles, each of which is as a cluster of the graphene sheets, and (c) separating the graphene sheets or graphene particles, followed by washing and drying, and a method for fabricating a graphene film is configured to fabricate a graphene film in form of a thin film using the graphene sheets or graphene particles fabricated according to the method. | 07-05-2012 |
20120316347 | METAL COLLOIDS WITH ACCESSIBLE METAL SURFACES - The invention provides complexes in which ligands (e.g., calixarene-related compounds) are coordinated to a metal colloid, e.g. a gold colloid. In exemplary embodiments, two or more ligands complexed to the metal colloid are larger than the metal colloid, thus providing an accessible metal center. The complexes can be immobilized on a substrate. The complexes of the invention are useful as tunable and highly robust isolated metal colloids that find use in binding of molecules and catalysis of chemical reactions. | 12-13-2012 |
20130048062 | SOLAR CELL COMPRISING BULK HETEROJUNCTION INORGANIC THIN FILM AND FABRICATION OF THE SOLAR CELL - Provided is a bulk heterojunction inorganic thin film solar cell and a method for fabricating the same. More particularly, the solar cell includes an inorganic thin film having a bulk heterojunction formed by using vertically grown n-type semiconductor nanostructure electrodes and filling the void spaces among the nanostructures with p-type semiconductor materials, unlike the known planar type inorganic thin film solar cells including n-type semiconductors and p-type semiconductors. | 02-28-2013 |
20130178680 | CATALYST FOR OXIDATIVE COUPLING OF METHANE, METHOD FOR PREPARING THE SAME, AND METHOD FOR OXIDATIVE COUPLING REACTION OF METHANE USING THE SAME - The present disclosure relates to a catalyst for oxidative coupling of methane, specifically, it relates to a catalyst for oxidative coupling of methane comprising: a magnesium titanium oxide support comprising a mixed oxide of magnesium and titanium; and sodium tungstate and manganese oxide supported on the support, a method for preparing the same, and a method for oxidative coupling of methane. The catalyst for oxidative coupling according to the present disclosure, wherein a mixed oxide of magnesium and titanium is used as the support of the catalyst, is capable of providing significantly improved catalytic activity and C | 07-11-2013 |
20130296596 | PREPARATION METHOD OF HYDROPHOBIC MONOLITH TYPE SILICA AEROGEL - Provided is a method for preparing hydrophobic monolithic silica aerogel, comprising dipping monolithic wet silica gel obtained by using an alkoxide precursor into an alkylsilane solution as a dipping solution to perform hydrophobitization of the surface and inner part of the monolithic wet silica gel by a dipping process. The method is economical by virtue of the use of a small amount of alkylsilane compound and imparts hydrophobic property to monolithic silica aerogel simply in a cost efficient and time efficient manner. In addition, the method reduces shrinkage of hydrophobic monolithic silica aerogel, enables production of hydrophobic monolithic silica aerogel in a translucent form, and allows the hydrophobic monolithic silica aerogel to maintain low heat conductivity similar to the heat conductivity of hydrophilic silica aerogel. The hydrophobic monolithic silica aerogel may be used directly as a heat insulating panel by virtue of excellent hydrophobic property and heat insulating property. | 11-07-2013 |
20140135210 | Cu/Zn/Al CATALYST AND METHOD FOR PREPARING THE SAME - The present disclosure relates to a Cu/Zn/Al catalyst and a method for preparing same. More particularly, the present disclosure relates to a Cu/Zn/Al catalyst including copper particles having high surface area and thus having excellent activity, which is prepared by: preparing a metal precursor solution by dissolving a copper precursor, a zinc precursor and an aluminum precursor in an organic solvent; mixing an aqueous basic solution with the metal precursor solution and precipitating metal particles; and preparing a Cu/Zn/Al catalyst by collecting and sintering the precipitated metal particles, and a method for preparing same. | 05-15-2014 |
20140179966 | METHOD OF MANUFACTURING HIGH-CARBON NUMBER SATURATED HYDROCARBONS FROM BIOMASS-DERIVED BENZYL PHENYL ETHERS USING ACID-METAL COMPLEX CATALYST - Provided is a method for producing a high-carbon number saturated hydrocarbon compound by subjecting a mixed biomass solution containing benzyl phenyl ether (C | 06-26-2014 |
20150045589 | CARBON-BASED PALLADIUM CATALYST OBTAINED BY USING IONIC LIQUID, METHOD FOR PREPARING THE SAME AND HYDROGENATION OF HYDROFLUOROCARBON USING THE SAME - Provided is a palladium on carbon (Pd/C) catalyst obtained by using an ionic liquid, a method for preparing the same, and a method for hydrogenation of hydrofluorocarbon using the same. More particularly, palladium particles are supported on carbon particles by using an ionic liquid, and the resultant Pd/C catalyst is used for hydrogenation of hydrofluorocarbon. The catalyst includes palladium particles having a smaller particle size and a more uniform shape as compared to the existing Pd/C catalysts, and thus shows high catalytic activity. | 02-12-2015 |
20150080617 | METHOD FOR PREPARING METAL FLUORIDE CATALYSTS AND DEHYDROFLUORINATION METHOD USING THE SAME - Disclosed is a method for preparing a metal fluoride catalyst as a dehydrofluorination catalyst having high activity under a mild condition using a trifluoroacetic acid solution with no use of HF gas having fluidity and corrosive property. Disclosed also is a dehydrofluorination method for preparing HFO-1225ye from HFP-236ea by using the catalyst with high efficiency. | 03-19-2015 |