Kapaca, E.; Jiang, J.; Cho, J.; Jorda Moret, JL.; Díaz Cabañas, MJ.; Zou, X.; Corma Canós, A.... (2021). Synthesis and Structure of a 22 x 12 x 12 Extra-Large Pore Zeolite ITQ-56 Determined by 3D Electron Diffraction. Journal of the American Chemical Society. 143(23):8713-8719. https://doi.org/10.1021/jacs.1c02654
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/190163
Title:
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Synthesis and Structure of a 22 x 12 x 12 Extra-Large Pore Zeolite ITQ-56 Determined by 3D Electron Diffraction
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Author:
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Kapaca, Elina
Jiang, Jiuxing
Cho, Jung
Jorda Moret, Jose Luis
Díaz Cabañas, Mª José
Zou, Xiaodong
Corma Canós, Avelino
Willhammar, Tom
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
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Issued date:
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Abstract:
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[EN] A multidimensional extra-large pore germanosilicate, denoted ITQ-56, has been synthesized by using modified memantine as an organic structure-directing agent. ITQ-56 crystallizes as plate-like nanocrystals. Its structure ...[+]
[EN] A multidimensional extra-large pore germanosilicate, denoted ITQ-56, has been synthesized by using modified memantine as an organic structure-directing agent. ITQ-56 crystallizes as plate-like nanocrystals. Its structure was determined by 3D electron diffraction/MicroED. The structure of ITQ-56 contains extra-large 22-ring channels intersecting with straight 12-ring channels. ITQ-56 is the first zeolite with 22-ring pores, which is a result of ordered vacancies of double 4-ring (d4r) units in a fully connected zeolite framework. The framework density is as low as 12.4 T atoms/1000 angstrom(3). The discovery of the ITQ-56 structure not only fills the missing member of extra-large pore zeolite with 22-ring channels but also creates a new approach of making extra-large pore zeolites by introducing ordered vacancies in zeolite frameworks.
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Subjects:
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Tomography
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Vacancies
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Journal of the American Chemical Society. (issn:
0002-7863
)
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DOI:
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10.1021/jacs.1c02654
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Publisher:
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American Chemical Society
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Publisher version:
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https://doi.org/10.1021/jacs.1c02654
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Project ID:
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info:eu-repo/grantAgreement/EC/H2020/671093/EU
...[+]
info:eu-repo/grantAgreement/EC/H2020/671093/EU
info:eu-repo/grantAgreement/MINISTERIO DE ECONOMÍA, INDUSTRIA Y COMPETITIVIDAD//SEV-2016-0683//Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/
info:eu-repo/grantAgreement/NSFC//21971259/
info:eu-repo/grantAgreement/Knut and Alice Wallenberg Foundation//2012-0112//3DEM-NATUR (KAW)/
info:eu-repo/grantAgreement/VR//2017-04321/
info:eu-repo/grantAgreement/VR//201905465/
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Thanks:
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This work has been supported by the European Union through ERC-AdG-2014-671093 (SynCatMatch), by the Spanish Government-MINECO through "Severo Ochoa" (SEV-2016-0683), the Swedish Research Council (VR, 2017-04321, 201905465), ...[+]
This work has been supported by the European Union through ERC-AdG-2014-671093 (SynCatMatch), by the Spanish Government-MINECO through "Severo Ochoa" (SEV-2016-0683), the Swedish Research Council (VR, 2017-04321, 201905465), and the Knut & Alice Wallenberg Foundation through the project grant 3DEM-NATUR (KAW, 2012-0112). The EM facility was supported by the Knut and Alice Wallenberg Foundation. J.J. thanks the National Natural Science Foundation 21971259.
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Type:
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Artículo
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