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Small-Pore Zeolites: Synthesis and Catalysis

Dusselier, Michiel and Davis, Mark E. (2018) Small-Pore Zeolites: Synthesis and Catalysis. Chemical Reviews, 118 (11). pp. 5265-5329. ISSN 0009-2665. doi:10.1021/acs.chemrev.7b00738.

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In the past decade or so, small-pore zeolites have received greater attention than large- and medium-pore molecular sieves that have historically dominated the literature. This is primarily due to the commercialization of two major catalytic processes, NOx exhaust removal and methanol conversion to light olefins, that take advantage of the properties of these materials with smaller apertures. Small-pore zeolites possess pores that are constructed of eight tetrahedral atoms (Si^(4+) and Al^(3+)), each time linked by a shared oxygen These eight-member ring pores (8MR) provide small molecules access to the intracrystalline void space, e.g., to NOx during car exhaust cleaning (NOx removal) or to methanol en route to its conversion into light olefins, while restricting larger molecule entrance and departure that is critical to overall catalyst performance. In total, there are forty-four structurally different small-pore zeolites. Forty-one of these zeolites can be synthesized, and the first synthetic zeolite (KFI, 1948) was in fact a small-pore material. Although the field of 8MR zeolite chemistry has expanded in many directions, the progress in synthesis is framework-specific, leaving insights and generalizations difficult to realize. This review first focuses on the relevant synthesis details of all 8MR zeolites and provides some generalized findings and related insights. Next, catalytic applications where 8MR zeolites either have been commercialized or have dominated investigations are presented, with the aim of providing structure–activity relationships. The review ends with a summary that discusses (i) both synthetic and catalytic progress, (ii) a list of opportunities in the 8MR zeolite field, and (iii) a brief future outlook.

Item Type:Article
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URLURL TypeDescription
Dusselier, Michiel0000-0002-3074-2318
Davis, Mark E.0000-0001-8294-1477
Additional Information:© 2018 American Chemical Society. Received: December 12, 2017; Published: May 10, 2018. M.D. thanks Research Foundation - Flanders (FWO) for funding, KU Leuven BOF for his appointment to Research Professor, Katrin Boden for general support, and Jong Hun Kang for making some of the 3D framework visualizations. M.E.D. thanks the coauthors of the papers his group has published on the synthesis and catalytic behavior of 8MR zeolites and Chevron and Dow for funding those investigations. The authors declare no competing financial interest.
Funding AgencyGrant Number
Fonds voor Wetenschappelijk Onderzoek (FWO)UNSPECIFIED
Issue or Number:11
Record Number:CaltechAUTHORS:20180510-135730797
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Official Citation:Small-Pore Zeolites: Synthesis and Catalysis. Michiel Dusselier and Mark E. Davis. Chemical Reviews 2018 118 (11), 5265-5329. DOI: 10.1021/acs.chemrev.7b00738.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86341
Deposited By: Tony Diaz
Deposited On:10 May 2018 21:33
Last Modified:15 Nov 2021 20:37

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