Facile Synthesis and Catalysis of Pure-Silica and Heteroatom LTA
Abstract
Zeolite A (LTA) has many large-scale uses in separations and ion exchange applications. Because of the high aluminum content and lack of high-temperature stability, applications in catalysis, while highly desired, have been extremely limited. Herein, we report a robust method to prepare pure-silica, aluminosilicate (product Si/Al = 12–42), and titanosilicate LTA in fluoride media using a simple, imidazolium- based organic structure-directing agent. The aluminosilicate material is an active catalyst for the methanol-to-olefins reaction with higher product selectivities to butenes as well as C5 and C6 products than the commercialized silicoalumniophosphate or zeolite analogue that both have the chabazite framework (SAPO- 34 and SSZ-13, respectively). Furthermore, the crystal structures of the as-made and calcined pure-silica materials were solved using singlecrystal X-ray diffraction, providing information about the occluded organics and fluoride as well as structural information.
- Authors:
-
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
- Departments of Bioengineering and Physics & Astronomy, Rice University, Houston, Texas 77005, United States
- Chevron Energy Technology Company, Richmond, California 94802, United States
- Publication Date:
- Research Org.:
- Rice Univ., Houston, TX (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1225234
- Alternate Identifier(s):
- OSTI ID: 1439315
- Grant/Contract Number:
- FG02-03ER15456
- Resource Type:
- Published Article
- Journal Name:
- Chemistry of Materials
- Additional Journal Information:
- Journal Name: Chemistry of Materials Journal Volume: 27 Journal Issue: 22; Journal ID: ISSN 0897-4756
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Boal, Ben W., Schmidt, Joel E., Deimund, Mark A., Deem, Michael W., Henling, Lawrence M., Brand, Stephen K., Zones, Stacey I., and Davis, Mark E. Facile Synthesis and Catalysis of Pure-Silica and Heteroatom LTA. United States: N. p., 2015.
Web. doi:10.1021/acs.chemmater.5b03579.
Boal, Ben W., Schmidt, Joel E., Deimund, Mark A., Deem, Michael W., Henling, Lawrence M., Brand, Stephen K., Zones, Stacey I., & Davis, Mark E. Facile Synthesis and Catalysis of Pure-Silica and Heteroatom LTA. United States. https://doi.org/10.1021/acs.chemmater.5b03579
Boal, Ben W., Schmidt, Joel E., Deimund, Mark A., Deem, Michael W., Henling, Lawrence M., Brand, Stephen K., Zones, Stacey I., and Davis, Mark E. Thu .
"Facile Synthesis and Catalysis of Pure-Silica and Heteroatom LTA". United States. https://doi.org/10.1021/acs.chemmater.5b03579.
@article{osti_1225234,
title = {Facile Synthesis and Catalysis of Pure-Silica and Heteroatom LTA},
author = {Boal, Ben W. and Schmidt, Joel E. and Deimund, Mark A. and Deem, Michael W. and Henling, Lawrence M. and Brand, Stephen K. and Zones, Stacey I. and Davis, Mark E.},
abstractNote = {Zeolite A (LTA) has many large-scale uses in separations and ion exchange applications. Because of the high aluminum content and lack of high-temperature stability, applications in catalysis, while highly desired, have been extremely limited. Herein, we report a robust method to prepare pure-silica, aluminosilicate (product Si/Al = 12–42), and titanosilicate LTA in fluoride media using a simple, imidazolium- based organic structure-directing agent. The aluminosilicate material is an active catalyst for the methanol-to-olefins reaction with higher product selectivities to butenes as well as C5 and C6 products than the commercialized silicoalumniophosphate or zeolite analogue that both have the chabazite framework (SAPO- 34 and SSZ-13, respectively). Furthermore, the crystal structures of the as-made and calcined pure-silica materials were solved using singlecrystal X-ray diffraction, providing information about the occluded organics and fluoride as well as structural information.},
doi = {10.1021/acs.chemmater.5b03579},
journal = {Chemistry of Materials},
number = 22,
volume = 27,
place = {United States},
year = {Thu Nov 05 00:00:00 EST 2015},
month = {Thu Nov 05 00:00:00 EST 2015}
}
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https://doi.org/10.1021/acs.chemmater.5b03579
https://doi.org/10.1021/acs.chemmater.5b03579
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Cited by: 52 works
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