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  Zeolite MCM-22: Synthesis, Dealumination and Structural Characterization

Unverricht, S., Hunger, M., Ernst, S., Karge, H. G., & Weitkamp, J. (1994). Zeolite MCM-22: Synthesis, Dealumination and Structural Characterization. In J. Weitkamp, H. G. Karge, & H. Pfeifer (Eds.), Zeolites and Related Microporous Materials: State of the Art 1994 - Proceedings of the 10th International Zeolite Conference, Garmisch-Partenkirchen, Germany, 17-22 July 1994 (pp. 37-44). Amsterdam: Elsevier.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-9462-1 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-01F1-4
Genre: Book Chapter

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 Creators:
Unverricht, S.1, Author
Hunger, M.1, Author
Ernst, S.1, Author
Karge, Hellmut G.2, Author           
Weitkamp, J.1, Author
Affiliations:
1Institute of Chemical Technology I, University of Stuttgart, D-70550 Stuttgart, Germany, ou_persistent22              
2Fritz Haber Institute, Max Planck Society, ou_24021              

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 Abstract: Zeolite MCM-22 was synthesized and characterized by selected physico-chemical methods. MAS NMR spectroscopic studies reveal that at least five crystallographically non-equivalent T-sites exist in the structure of MCM-22 and that they are affected to different degrees by dealumination with Sicl4vapors. From IR and TPDA experiments it can be concluded that the acidic properties of HMCM-22 are very similar to HZSM-5. A Spaciousness Index of ca. 8 is indicative of an effective pore width in the intermediate region between 10- and 12-membered ring zeolites.

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Language(s): eng - English
 Dates: 1994
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/S0167-2991(08)64087-2
 Degree: -

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Title: Zeolites and Related Microporous Materials: State of the Art 1994 - Proceedings of the 10th International Zeolite Conference, Garmisch-Partenkirchen, Germany, 17-22 July 1994
Source Genre: Book
 Creator(s):
Weitkamp, J., Editor
Karge, H. G., Editor
Pfeifer, H., Editor
Hölderich, W., Author
Affiliations:
-
Publ. Info: Amsterdam : Elsevier
Pages: 8 Volume / Issue: - Sequence Number: - Start / End Page: 37 - 44 Identifier: ISBN: 978-0-444-81847-8

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Title: Studies in Surface Science and Catalysis
Source Genre: Series
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Publ. Info: -
Pages: - Volume / Issue: 84 Sequence Number: - Start / End Page: - Identifier: ISSN: 0167-2991