Facile and reproducible synthesis of ITQ-29 zeolite by using Kryptofix 222 as the structure directing agent

In pioneering papers Corma et al. reported the synthesis of the Al-free zeolite ITQ-29 with LTA topology by using supramolecular self-assembled molecules as the organic structure directing agent (SDA). However, the SDA used to synthesize ITQ-29 is not commercial and rather difficult to synthesize and purify. Thus the development of a more convenient and more effective method for the synthesis of ITQ-29 is highly desired. Therefore, in this communication we propose a facile and reproducible method to synthesize uniform and well-shaped ITQ-29 crystals by using the crown ether Kryptofix 222 as the SDA.