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Synthesis and Characterization of CIT-13, a Germanosilicate Molecular Sieve with Extra-Large Pore Openings

Kang, Jong Hun and Xie, Dan and Zones, Stacey I. and Smeets, Stef and McCusker, Lynne B. and Davis, Mark E. (2016) Synthesis and Characterization of CIT-13, a Germanosilicate Molecular Sieve with Extra-Large Pore Openings. Chemistry of Materials, 28 (17). pp. 6250-6259. ISSN 0897-4756. doi:10.1021/acs.chemmater.6b02468. https://resolver.caltech.edu/CaltechAUTHORS:20160907-114638341

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Abstract

The synthesis of the germanosilicate CIT-13, a molecular sieve that is the first to have a two-dimensional (2D) pore system possessing pores that are bounded by 14- and 10-rings, is accomplished using a family of monoquaternary, benzyl-imidazolium organic structure-directing agents (OSDAs) in aqueous media containing fluoride. CIT-13 is prepared using either hydrogen fluoride (HF) or ammonium fluoride (NH_4F). The structure refinement suggests that most of the Ge atoms are located in the d4r (double-4-rings) units, and that there are framework disorders in the arrangement of those d4r units. Other characterizations of CIT-13 such as ^(29)Si MAS NMR spectra, Ar-adsorption isotherms, and so forth are presented and compared to those of IM-12 (UTL), a previously reported germanosilicate with 14- and 12-ring pores.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/acs.chemmater.6b02468DOIArticle
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b02468PublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/acs.chemmater.6b02468Related ItemSupporting Information
ORCID:
AuthorORCID
Kang, Jong Hun0000-0002-4197-9070
Xie, Dan0000-0003-2467-976X
Davis, Mark E.0000-0001-8294-1477
Additional Information:© 2016 American Chemical Society. Received: June 17, 2016. Revised: August 17, 2016. We thank Chevron Energy and Technology Company for support of this research. We thank Dr. Joel Schmidt for useful comments throughout the research study. We thank Antonio Cervellino for his assistance with the powder diffraction measurement on the Materials Science Beamline at the SLS in Villigen, Switzerland. This work was supported also by the Swiss National Science Foundation. Author Contributions: The manuscript was written through contributions of all authors. All authors have given approval to the final manuscript. The authors declare no competing financial interest.
Funders:
Funding AgencyGrant Number
Chevron Energy Technology CompanyUNSPECIFIED
Swiss National Science Foundation (SNSF)UNSPECIFIED
Issue or Number:17
DOI:10.1021/acs.chemmater.6b02468
Record Number:CaltechAUTHORS:20160907-114638341
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160907-114638341
Official Citation:Synthesis and Characterization of CIT-13, a Germanosilicate Molecular Sieve with Extra-Large Pore Openings Jong Hun Kang, Dan Xie, Stacey I. Zones, Stef Smeets, Lynne B. McCusker, and Mark E. Davis Chemistry of Materials 2016 28 (17), 6250-6259 DOI: 10.1021/acs.chemmater.6b02468
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70194
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:07 Sep 2016 19:48
Last Modified:11 Nov 2021 04:25

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