The present invention relates to a method for producing porous inorganic materials or a matrix material and obtainable by the method which material has high uniformity in thickness / higher or nanoparticles containing a large effective surface area. Method mentioned above, there is a specified thickness range can be obtained in the material ± 10%, preferably ± 5% of the average thickness. ; The porous, inorganic material, a matrix material, a pigment, nanoparticles, separating agent.
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