The role of metal cations as templating species in zeolite formation KU Leuven
At present zeolite synthesis is still more an art than a science, especially these syntheses that are exclusively depending on alkali metal cations as structure directors. Much remains unclear about zeolite crystallisation, as is often evidenced by the dramatic impact of slight modifications of the synthesis conditions on the products formed. Today, less than 10 zeolite types are commercially exploited, while more than 200 framework types ...