Porous 4 group metal oxide and method for preparation thereof
(2-x)2x 2This invention relates to a 4 group metal oxide and to a method for preparation thereof and the 4 group metal oxide prepared by adding a particle growth inhibiter to a hydrosol a hydrogel or a dried product of a hydrous 4 group metal oxide represented by MO(OH)(wherein M denotes a 4 group m...
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creator | Inoue, Shinichi Kudou, Hidehiko Mutou, Akihiro Ono, Tateo Makabe, Toshiji Takatsuka, Toru Nomura, Hisashi |
description | (2-x)2x 2This invention relates to a 4 group metal oxide and to a method for preparation thereof and the 4 group metal oxide prepared by adding a particle growth inhibiter to a hydrosol a hydrogel or a dried product of a hydrous 4 group metal oxide represented by MO(OH)(wherein M denotes a 4 group metal and x is a number greater than 0.1 or x>0.1) followed by drying and calcining has a specific surface area of 80 m/g or more, a pore volume of 0.2 ml/g or more and a pore sharpness degree of 50% or more and excellent heat stability and is useful for a catalyst or a catalyst carrier in which a catalyst metal is dispersed to a high degree. This invention further relates to a porous 4 group metal oxide and to a method for preparation thereof and the 4 group metal oxide prepared by application of a pH swing operation is characterized by a large specific surface area, excellent heat stability, high dispersion of a catalyst metal and a controlled and sharp pore distribution and is useful for a catalyst or a catalyst carrier of excellent reaction selectivity. |
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This invention further relates to a porous 4 group metal oxide and to a method for preparation thereof and the 4 group metal oxide prepared by application of a pH swing operation is characterized by a large specific surface area, excellent heat stability, high dispersion of a catalyst metal and a controlled and sharp pore distribution and is useful for a catalyst or a catalyst carrier of excellent reaction selectivity.</abstract><oa>free_for_read</oa></addata></record> |
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title | Porous 4 group metal oxide and method for preparation thereof |
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