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- Title
Targeted Synthesis of Two Super-Complex Zeolites with Embedded Isoreticular Structures.
- Authors
Shin, Jiho; Xu, Hongyi; Seo, Seungwan; Guo, Peng; Min, Jung Gi; Cho, Jung; Wright, Paul A.; Zou, Xiaodong; Hong, Suk Bong
- Abstract
A novel structural coding approach combining structure solution, prediction, and the targeted synthesis of new zeolites with expanding complexity and embedded isoreticular structures was recently proposed. Using this approach, the structures of two new zeolites in the RHO family, PST-20 and PST-25, were predicted and synthesized. Herein, by extending this approach, the next two higher generation members of this family, PST-26 and PST-28, have been predicted and synthesized. These two zeolites have much larger unit cell volumes (422 655 Å3 and 614 912 Å3, respectively) than those of the lower generations. Their crystallization was confirmed by a combination of both powder X-ray and electron diffraction techniques. Aluminate and water concentrations in the synthetic mixture were found to be the two most critical factors influencing the structural expansion of embedded isoreticular zeolites under the synthetic conditions studied herein.
- Subjects
ZEOLITES; ELECTRON diffraction; X-ray absorption; CRYSTAL structure; ALUMINUM silicates
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 16, p5012
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201510726