PRODUCTION OF INORGANIC POROUS MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a producing method of an inorg. porous material having a homogeneous structure with good reproducibility all over the area in a member having a narrow space such as a capillary and of between that plates, and consequently, which shows high separation performance when used for chromatography. SOLUTION: A compd. to be pyrolyzed is preliminarily dissolved in a reaction soln. to prepare a gel by a solgel method in a member having a space of <=1 mm distance. The gel consists of a solvent-rich phase having a three-dimensional mesh structure of >=100 nm average diameter which is rich in the solvent, and a matrix phase which is rich in an inorg. material and has pores on the surface. Then the wet gel is heated to pyrolyze the low mol.wt. compd. preliminarily dissolved in the preparing process of the gel, and then the gel is dried and heated.