Targeted Synthesis of Two Super‐Complex Zeolites with Embedded Isoreticular Structures |
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| Authors: | Dr Jiho Shin Dr Hongyi Xu Seungwan Seo Peng Guo Jung Gi Min Jung Cho Prof Paul A Wright Prof Xiaodong Zou Prof Suk Bong Hong |
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| Institution: | 1. Center for Ordered Nanoporous Materials Synthesis, School of Environmental Science and Engineering, POSTECH, Pohang, Korea;2. Inorganic and Structural Chemistry and Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden;3. EaStCHEM School of Chemistry, University of St. Andrews, St. Andrews, Fife, UK |
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| 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. |
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| Keywords: | microporous materials structure prediction synthesis design X-ray diffraction zeolites |
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