Predicting hypothetical zeolite frameworks using program FraGen

Jun Ran Lu, Yi Li*, Ji Hong Yu, Ying Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Zeolites are microporous materials that have been widely used in various chemical industries. Zeolite structure prediction involves building feasible zeolite frameworks on computers, and can be used as a tool to determine the structures of synthesized zeolites and to identify promising synthetic candidates for future rational synthesis. Although many approaches for zeolite structure prediction have been developed, none of them has proved to be efficient at generating chemically feasible structures. To solve this problem, we developed the computer program FraGen to predict inorganic crystal structures. FraGen is capable of generating atoms in a given unit cell, adjusting the locations of atoms through the parallel tempering Monte Carlo method, and producing chemically feasible crystal structures. In this work, starting from the structure of zeolite AET, we use FraGen to predict a series of novel zeolite structures by controlling the Wyckoff site symmetry of each atom specifically. Compared with previous prediction methods, FraGen can generate more structures that are chemically feasible.

Original languageEnglish
Pages (from-to)1661-1665
Number of pages5
JournalWuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
Volume29
Issue number8
DOIs
Publication statusPublished - 9 Jul 2013
Externally publishedYes

Keywords

  • Computer simulation
  • FraGen
  • LID criteria
  • Structure prediction
  • Wyckoff site symmetry
  • Zeolite

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