MATERIAL CONTAINING SILICON AND HAVING HIERARCHICAL POROSITIES

摘要

PROBLEM TO BE SOLVED: To provide an aluminosilicate material having both merits of an organized mesoporous structure and a micro-crystal skeleton. SOLUTION: The material having hierarchical porosities is constituted of at least two spherical base particles, and the spherical base particles each contain zeolite nanocrystal having pores with pore sizes of 0.2-2 nm and a matrix based on silicon oxide. The matrix is mesostructured and has pores having pore sizes of 1.5-30 nm, and an amorphous wall having a thickness of 1-20 nm. The maximum diameter of the spherical base particle is 10μm. The matrix based on silicon oxide may contains aluminum. A method for producing the material is also disclosed. COPYRIGHT: (C)2006,JPO&NCIPI