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Updated: Aug 22, 2025

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route
Published on: April 3, 2016
Direct Identification of Zeolite Beta Polymorphs by Solid-State 29Si Nuclear Magnetic Resonance Spectroscopy
Yury G Kolyagin1,2, Alexander V Yakimov1, Dmitry S Zasukhin1
1Department of Chemistry, Lomonosov Moscow State University, Leninskye Gory 1, Building 3, 119991 Moscow, Russia.
Pure shift solid-state 29Si NMR resolves complex zeolite structures. This advanced technique accurately determines polymorph composition, outperforming X-ray diffraction for zeolite beta.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Spectroscopy
Background:
- Zeolitic materials exhibit stacking disorder and polymorphism, complicating structural characterization.
- Accurate structural determination is crucial for understanding and utilizing zeolites in various applications.
Purpose of the Study:
- To develop and apply an advanced
- Main_Methods
- Main_Results
- Conclusions
Main Methods:
- Utilized
- Applied
- Reconstructed individual 29Si magic angle spinning NMR spectra for each polymorph.
Main Results:
- Successfully resolved 21 29Si signals in zeolite beta, assigning them to non-equivalent T sites in polymorphs A, B, and C.
- Determined polymorph composition with higher accuracy compared to X-ray diffraction.
- Revealed that alkaline and fluoride synthesis routes yield different polymorph compositions for zeolite beta.
Conclusions:
- The developed
- This technique offers a superior method for elucidating polymorphism in zeolites.
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