Tetraethylammonium-Mediated Zeolite Synthesis via a Multiple Inorganic Cation Approach

RHO-, KFI-, and OFF-type zeolites have been synthesized using tetraethylammnoium ions as an organic structure-directing agent via a multiple inorganic cation approach. Under the synthesis conditions studied here, the crystallization field of each of these zeolites was found to be narrow. We anticipate that the multiple inorganic cation approach might be an alternative way to economically synthesize known zeolite structures with industrially promising applications, as well as to find novel ones.