Abstract: An aspect of the present invention relates to a method of preparing a magnetic particle, which comprises attaching a transition metal-containing organic compound to a surface of a hard magnetic particle and then thermally decomposing the transition metal-containing organic compound to obtain the magnetic particle.

Abstract: A Raney-type metal porous material of which at least the inner surface of the pores constituting the porous structure is an alloy of the skeletal metal constituting it and a metal differing from the skeletal metal. The invention has made it possible to alloy a Raney-type metal with a porous structure, to realize a novel method of enabling remarkable enhancement of the function and the activity of the alloy based on the porous structure thereof, and to use the alloy as catalysts, etc.

Abstract: An aspect of the present invention relates to a method of preparing a magnetic particle, which comprises attaching a transition metal-containing organic compound to a surface of a hard magnetic particle and then thermally decomposing the transition metal-containing organic compound to obtain the magnetic particle.

Abstract: A Raney-type metal porous material of which at least the inner surface of the pores constituting the porous structure is an alloy of the skeletal metal constituting it and a metal differing from the skeletal metal. The invention has made it possible to alloy a Raney-type metal with a porous structure, to realize a novel method of enabling remarkable enhancement of the function and the activity of the alloy based on the porous structure thereof, and to use the alloy as catalysts, etc.

Abstract: An aspect of the present invention relates to magnetic powder comprised of gathering magnetic particles, wherein the magnetic particles comprise a hard magnetic particle and a soft magnetic material deposited on a surface of the hard magnetic particle in a state where the soft magnetic material is exchange-coupled with the hard magnetic particle.

Abstract: A method of manufacturing a copper-based catalyst having high activity and superior heat resistance and a catalyst used for steam reforming of methanol has Al alloy particles each having an oxide surface layer containing fine copper oxide particles. The Al alloy particles are produced by leaching Al alloy particles with an aqueous solution. The Al alloy particles are prepared by pulverizing a bulky Al alloy having a quasicrystalline phase, the quasicrystalline phase being represented by the formula Al100-y-zCuyTMz (where y is 10 to 30 atomic percent, z is 5 to 20 atomic percent, and TM indicates at least one of transition metals other than Cu). In the catalyst, the oxide surface layer containing fine copper oxide particles is formed by adjusting leaching conditions so as to form an oxide surface layer, which contains dispersed fine Cu particles and which is composed of an Al oxide and a transition metal oxide, on the surface of each of the Al alloy particles.

Abstract: [Object] To provide a copper-based catalyst having high activity and superior heat resistance and durability and to provide a manufacturing method of the above catalyst which can be performed at a low cost by a process that is improved as simple as possible. [Solving Means] A catalyst used for steam reforming of methanol has Al alloy particles each having an oxide surface layer containing fine copper oxide particles, the Al alloy particles being produced by a process comprising the step of performing leaching treatment for Al alloy particles with an aqueous alkaline solution which are prepared by pulverizing a bulky Al alloy having a quasicrystalline phase or a related crystalline phase thereof, the quasicrystalline phase being represented by the formula: Al100-y-zCuyTMz (where y is in the range of 10 to 30 atomic percent, z is in the range of 5 to 20 atomic percent, and TM indicates at least one of transition metals other than Cu).

Abstract: A method of removing nitrogen oxides from an exhaust gases by reducing the nitrogen oxides with an oxygen-containing compound in the presence of a catalyst containing an H-type ferrierite. The catalyst may include a metal ion and/or a metal compound or a third component such as alumina or silica.