In Situ Time-Resolved Observation of the Development of Intracrystalline Mesoporosity in USY Zeolite

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Title: In Situ Time-Resolved Observation of the Development of Intracrystalline Mesoporosity in USY Zeolite
Authors: Linares Pérez, Noemí | Sachse, Alexander | Serrano, Elena | Grau-Atienza, Aida | Jardim, Erika de Oliveira | Silvestre-Albero, Joaquín | Cordeiro, Marco Aurelio Liutheviciene | Fauth, François | Beobide, Garikoitz | Castillo, Oscar | Garcia-Martinez, Javier
Research Group/s: Laboratorio de Nanotecnología Molecular (NANOMOL) | Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Development of intracrystalline mesoporosity | USY Zeolite
Knowledge Area: Química Inorgánica
Issue Date: 2-Dec-2016
Publisher: American Chemical Society
Citation: Chemistry of Materials. 2016, 28(24): 8971-8979. doi:10.1021/acs.chemmater.6b03688
Abstract: The development of intracrystalline mesoporosity within zeolites has been a long-standing goal in catalysis as it greatly contributes to alleviating the diffusion limitations of these widely used microporous materials. The combination of in situ synchrotron X-ray diffraction and liquid-cell transmission electron microscopy enabled the first in situ observation of the development of intracrystalline mesoporosity in zeolites and provided structural and kinetic information on the changes produced in zeolites to accommodate the mesoporosity. The interpretation of the time-resolved diffractograms together with computational simulations evidenced the formation of short-range hexagonally ordered mesoporosity within the zeolite framework, and the in situ electron microscopy studies allowed the direct observation of structural changes in the zeolite during the process. The evidence for the templating and protective role of the surfactant and the rearrangement of the zeolite crystal to accommodate intracrystalline mesoporosity opens new and exciting opportunities for the production of tailored hierarchical zeolites.
Sponsor: We acknowledge the ALBA synchrotron for beamtime availability (Project ID: 2015021271) and the Center for Functional Nanomaterials at the Brookhaven National Laboratory for the Liq-TEM availability. The authors further acknowledge the CAPITA Project WAVES (EP7-NMP-266543) for financial support.
URI: http://hdl.handle.net/10045/65288
ISSN: 0897-4756 (Print) | 1520-5002 (Online)
DOI: 10.1021/acs.chemmater.6b03688
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 American Chemical Society
Peer Review: si
Publisher version: http://dx.doi.org/10.1021/acs.chemmater.6b03688
Appears in Collections:INV - NANOMOL - Artículos de Revistas
INV - LMA - Artículos de Revistas

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