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%.