We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- 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 E. A.; Martens, Johan A.
- 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 ? 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 ? transformation with dislodged germanate four-rings still residing in the pores could be demonstrated. Inverse ? transformation involving elimination of germanium-containing structural units opens perspectives for the synthesis of many more zeolites.
- Subjects
ZEOLITES; INVERSE problems; MATHEMATICAL transformations; ERROR rates; GERMANIUM; ATOMS; CHEMICAL reactions
- Publication
Nature Materials, 2012, Vol 11, Issue 12, p1059
- ISSN
1476-1122
- Publication type
Article
- DOI
10.1038/nmat3455