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Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA. .
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA. .
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA. .
SM Application Group, JEOL Ltd., Akisima, Tokyo 196-8558, Japan.
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2012 (English)In: IBS Journal of Science, ISSN 1751-0724, E-ISSN 1751-0724, Vol. 336, no 6089, 1684-1687 p.Article in journal (Refereed) Published
Abstract [en]

Hierarchical zeolites are a class of microporous catalysts and adsorbents that also contain mesopores, which allow for fas transport of bulky molecules and thereby enable improved performance in petrochemical and biomass processing. We used repetitive branching during one-step hydrothermal crystal growth to synthesize a new hierarchical zeolite made of orthogonally connected microporous nanosheets. The nanosheets are 2 nanometers thick and contain a network of 0.5-nanometer micropores. The house-of-cards arrangement of the nanosheets creates a permanent network of 2- to 7-nanometer mesopores, which, along with the high external surface area and reduced micropore diffusion length, account for higher reaction rates for bulky molecules relative to those of other mesoporous and conventional MFI zeolites.

Place, publisher, year, edition, pages
2012. Vol. 336, no 6089, 1684-1687 p.
Keyword [en]
Self-Pillared Zeolite Nanosheets
National Category
Materials Chemistry
Research subject
Materials Chemistry
Identifiers
URN: urn:nbn:se:su:diva-88520DOI: 10.1126/science.1221111OAI: oai:DiVA.org:su-88520DiVA: diva2:611793
Available from: 2013-03-18 Created: 2013-03-18 Last updated: 2017-12-06Bibliographically approved

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