Fritz-Haber-Institut / Inorganic Chemistry |
|Hierarchical Pore ZSM-5 Zeolite Structures: from Micro to Macro-Engineering of Structured Catalysts|
|Authors:||Louis, Benoît; Okampo, Fabien; Yun, Hiu-Suk; Tessonnier, Jean-Philippe; Pereira, Marcello M.|
|Date of Publication (YYYY-MM-DD):||2010-07-20|
|Title of Journal:||Chemical Engineering Journal|
|Issue / Number:||3|
|Copyright:||© 2009 Elsevier B.V. All rights reserved.|
|Abstract / Description:||Zeolite crystals coated on mesoporous glass materials with hierarchical tri-modal pore size distributions have been successfully prepared and characterized. Starting glass monoliths, having regular meso- and macro-pores, were partly re-constructed into zeolite material, thus introducing additional microporosity via the growth of these zeolite crystals.
Hierarchical 3D porous glass scaffolds were prepared by a combination of sol–gel, double polymer templating, and rapid prototyping (RP) techniques. Structured zeolitic catalytic materials were produced by conventional self-assembly of template cations and silica species on the glass surface. Zeolite crystals are therefore in an intimate contact with the glass support, featuring micropores in addition to the mesopores.
A higher catalytic performance and selectivity toward low alkenes were achieved in n-hexane cracking reaction over these zeolite/glass composites in comparison with purely microporous zeolite materials.
|Free Keywords:||ZSM-5 zeolite; Structured catalyst; Hierarchical porosity; n-Hexane cracking; Mesoporous zeolite
Research Context: ZMS-5
|External Publication Status:||published|
|Communicated by:||Robert Schlögl|
|Affiliations:||Fritz-Haber-Institut/Inorganic Chemistry/Micro- and Nanostructure / Carbon|
|External Affiliations:||Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse (LMSPC), UMR 7515 du CNRS, Part of European Laboratory for Catalysis and Surface Science (ELCASS), University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 2, France
Center for Future Technology, Korea Institute of Materials Science, 531 Changwondero, Changwon, Republic of Korea
Instituto de Quimica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
|Identifiers:||URL:http://dx.doi.org/10.1016/j.cej.2009.09.041 [only for subscriber] |
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