Journal
CHEMISTRY OF MATERIALS
Volume 26, Issue 2, Pages 1161-1169Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm403527t
Keywords
-
Funding
- Spanish CICYT [MAT2012-31759]
- CSIC
- Fondo Social Europeo (EU)
Ask authors/readers for more resources
HPM-2 is a new organosilicate layered material synthesized by the fluoride route using 2-ethyl-1,3,4-trimethylimidazolium. The layers are of a new structural type (denoted mtf) and are held together by strong hydrogen bonds giving rise to a H-1 magic angle spinning (MAS) nuclear magnetic resonance (NMR) at around 16 ppm and by Coulombic interactions between silanolates and the organic cations residing in the interlayer space. Upon calcination HPM-2 transforms into the pure silica MTF zeolite by topotactic condensation, a process that is essentially completed at 400 degrees C. Attempts to apply known methods to derive new materials (swelling, delamination, interlayer expansion) are described. In the case of the interlayer expansion reaction, a nonmicroporous dense phase is obtained, which is likely due to an unfavorable disposition of silanols id close couples within each layer. Silanol condensation between the newly incorporated silicon species occurs across the main window producing narrower (6 member ring, 6MR) rather than wider (10MR) windows.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available