Title: Design of zeolite by inverse sigma transformation
Authors: Verheyen, Elke
Joos, Lennart
Van Havenbergh, Kristof
Breynaert, Eric
Kasian, Nataliia
Gobechiya, Elena
Houthoofd, Kristof
Martineau, Charlotte
Hinterstein, Manuel
Taulelle, Francis
Van Speybroeck, Veronique
Waroquier, Michel
Bals, Sara
Van Tendeloo, Gustaaf
Kirschhock, Christine ×
Martens, Johan #
Issue Date: 2012
Publisher: Nature Pub. Group
Series Title: Nature Materials vol:11-12 issue:12 pages:1059-1064
Article number: doi:10.1038/nmat3455
Abstract: Although the search for new zeolites has traditionally been based on trial and error, more rational methods are now available. The theoretical concept of inverse σ transformation of a zeolite framework to generate a new structure by removal of a layer of framework atoms and contraction has for the first time been achieved experimentally. The reactivity of framework germanium atoms in strong mineral acid was exploited to selectively remove germanium-containing four-ring units from an UTL type germanosilicate zeolite. Annealing of the leached framework through calcination led to the new all-silica COK-14 zeolite with intersecting 12- and 10-membered ring channel systems. An intermediate stage of this inverse σ transformation with dislodged germanate four-rings still residing in the pores could be demonstrated. Inverse σ transformation involving elimination of germanium-containing structural units opens perspectives for the synthesis of many more zeolites
ISSN: 1476-1122
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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