Abstract: The present invention relates to a method for preparing a supported catalyst comprising a crystalline Pd—Rh alloy, the method comprising the steps of: (i) producing an impregnated support by means of mixing an inorganic support, a Pd precursor solution and an Rh precursor solution; and (ii) thermally treating the impregnated support in a reducing gas atmosphere.

Abstract: The present invention relates to a method for preparing a supported catalyst comprising a crystalline Pd—Rh alloy, the method comprising the steps of: (i) producing an impregnated support by means of mixing an inorganic support, a Pd precursor solution and an Rh precursor solution; and (ii) thermally treating the impregnated support in a reducing gas atmosphere.

Abstract: Disclosed are a washcoat and a catalyst member coated with the washcoat, wherein the washcoat, which is applied on a substrate as a catalyst member for purifying exhaust gas, includes a catalytically inactive refractory oxide not impregnated with catalytic components, and thus, even when the support structure physically collapses due to the sintering of the support, the diffusion rate of exhaust gas can be maintained, and the exposed portion of catalytically active components can be maintained, thus increasing the service life of the catalyst.

Abstract: An assembly unit for buildings and its fabrication method are disclosed. The assembly unit includes an expanded synthetic resin; a metal wire bent in a zigzag manner to have bent portions, inserted in the expanded synthetic resin, a certain length of the bent portions being exposed from front and rear surfaces of the expanded synthetic resin; and a metal wire mesh mounted on the front and rear surfaces of the expanded synthetic resin and combined with the bent portions of the metal wire, to thereby obtain the working stability, so that an operator may carry it easily, shorten construction time by removing the necessity of a series of works of making a concrete form, casting concrete and curing the concreted surface, improve surroundings, and reduce construction expenses, by simply using the expanded synthetic resin, the metal wire and the metal wire mesh, compared with those of when existing reinforced concrete structures are employed.

Abstract: Disclosed herein is a three-way conversion (TWC) catalyst containing little or no rhodium for purifying exhaust gases of an internal combustion engine, having a multi-layers structure, including a lower layer including an alumina support and an oxygen storage material; an intermediate layer including alumina support impregnated only with palladium and a zirconia-rich oxygen storage material; and an upper layer including alumina support impregnated with platinum, minimum rhodium and platinum, or platinum-palladium and a ceria-rich oxygen storage material.