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제목   [16.03월] [Angewandte Chemie] 홍석봉 교수 연구실 Targeted Synthesis of Two Super-Complex Zeolites with Embedded Isoreticular Structures   이름  관리자
날짜  2016-03-21 16:11:51 조회  1131 추천  0
첨부   Targeted synthesis of two super-complex zeolites with embedded isoreticualr structures.pdf(1535.27KB)

Title: Targeted Synthesis of Two Super-Complex Zeolites with Embedded Isoreticular Structures

 

Authors: Jiho Shin, Hongyi Xu, Seungwan Seo, Peng Guo, Jung Gi Min, Jung Cho, Paul A. Wright, Xiaodong Zou, and Suk Bong Hong

 

Journal: Angewandte Chemie

 

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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