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A combustion-free methodology for synthesizing zeolites and zeolite-like materials

Lee, Hyunjoo and Zones, Stacey I. and Davis, Mark E. (2003) A combustion-free methodology for synthesizing zeolites and zeolite-like materials. Nature, 425 (6956). pp. 385-388. ISSN 0028-0836. doi:10.1038/nature01980. https://resolver.caltech.edu/CaltechAUTHORS:20150326-134801555

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Abstract

Zeolites are mainly used for the adsorption and separation of ions and small molecules, and as heterogeneous catalysts. More recently, these materials are receiving attention in other applications, such as medical diagnosis and as components in electronic devices. Modern synthetic methodologies for preparing zeolites and zeolite-like materials typically involve the use of organic molecules that direct the assembly pathway and ultimately fill the pore space. Removal of these enclathrated species normally requires high temperature combustion that destroys this high cost component, and the associated energy release in combination with the formed water can be extremely detrimental to the inorganic structure. Here we report a synthetic methodology that avoids these difficulties by creating organic structure-directing agents (SDAs) that can be disassembled within the zeolite pore space to allow removal of their fragments for possible use again by reassembly. The methodology is shown for the synthesis of zeolite ZSM-5 using a SDA that contains a cyclic ketal group that is removed from the SDA while it is inside the zeolite without destruction of the inorganic framework. This approach should be applicable to the synthesis of a wide variety of inorganic and organometallic structures.


Item Type:Article
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URLURL TypeDescription
http://dx.doi.org/10.1038/nature01980DOIArticle
http://www.nature.com/nature/journal/v425/n6956/full/nature01980.htmlPublisherArticle
http://www.nature.com/nature/journal/v425/n6956/suppinfo/nature01980.htmlPublisherSupplementary Information
http://rdcu.be/cpunPublisherFree ReadCube access
ORCID:
AuthorORCID
Davis, Mark E.0000-0001-8294-1477
Additional Information:© 2003 Nature Publishing Group. Received 27 March; accepted 5 August 2003. We thank S. J. Hwang for assistance with NMR measurements, and L. T. Yuen and B. Lee for performing the catalytic testing. This work was supported by the ChevronTexaco Research and Technology Company.
Funders:
Funding AgencyGrant Number
ChevronTexaco Research and Technology CompanyUNSPECIFIED
Issue or Number:6956
DOI:10.1038/nature01980
Record Number:CaltechAUTHORS:20150326-134801555
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150326-134801555
Official Citation:Lee, H., Zones, S. I., & Davis, M. E. (2003). A combustion-free methodology for synthesizing zeolites and zeolite-like materials. [10.1038/nature01980]. Nature, 425(6956), 385-388.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56145
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:27 Mar 2015 00:55
Last Modified:10 Nov 2021 20:55

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