10.1021/cm503625u.s001 Joel E. Schmidt Joel E. Schmidt Mark A. Deimund Mark A. Deimund Mark E. Davis Mark E. Davis Facile Preparation of Aluminosilicate RTH across a Wide Composition Range Using a New Organic Structure-Directing Agent American Chemical Society 2014 hydroxide media RTH type zeolites material aluminosilicate RTH Wide Composition Range propylene fluoride 2014-12-23 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Facile_Preparation_of_Aluminosilicate_RTH_across_a_Wide_Composition_Range_Using_a_New_Organic_Structure_Directing_Agent/2222746 RTH type zeolite (aluminosilicate) is a potentially useful catalytic material that is limited by the inability to easily prepare the material over a wide composition range. Here, we report the use of pentamethylimidazolium to prepare aluminosilicate RTH across a wide range of compositions in both fluoride and hydroxide inorganic systems. RTH type zeolites are crystallized with a calcined product Si/Al of 7–27 from fluoride media and 6–59 from hydroxide media. The use of this new, simple organic structure-directing agent that can be prepared in one step allows for dramatic improvement in the compositional space where aluminosilicate RTH can be formed. RTH is tested as a catalyst for the methanol-to-olefins reaction and at complete conversion shows a high propylene/ethylene ratio of 3.9 at a propylene selectivity of 43%.