engleski

The influence of the preparation method on the ratio of heteroatoms in the zeolite beta structure

Beta zeolite is microporous, aluminosilicate characterized by big 12-ring channel systems. It is commonly used as commercial adsorbents and catalysts. Although the pores are exceptionally large there are limitations which decrease efficiency of the catalysts. Such limitations should be avoided by creating mesoporous voids (channels and holes) during catalyst synthesis or by postsynthesis treatment of classically prepared microcrystals. Another important issue in catalysis efficiency is the number of active sites (i.e. Lewis and Brønsted acid sites). It´s number can be increased with number of hetero T-atoms within framework by postsynthesis treatment.

mesoporous beta ; wet impregnation ; mehanochemistry ; fluoride postsynthesis treatment

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