1 research outputs found
Studies on the Dual-Templating Function of TBA for the Formation of ZSM-11 Intergrowth Morphology
Hierarchically
structured ZSM-11 microspheres with an intergrowth
morphology have been hydrothermally synthesized using only one organic
templating molecule (TBABr). An investigation of the effects of the
structure-directing agent on the zeolite particle morphology and textural
properties was performed. It was found that the template tetraalkylammonium
ions TBA<sup>+</sup> (or TPA<sup>+</sup>) not only were located in
the channel intersections of ZSM-11 (or ZSM-5), but were also attached
to the external surface of the precursors, which prevented these precursors
from further condensation. Finally, a morphology of numerous nanocrystals
inserting into each other was formed, and the voids among these intergrowth
crystals endowed these materials with mesoporosity