Microwave-assisted synthesis of plate-like SAPO-34 nanocrystals with increased catalyst lifetime in the methanol-to-olefin reaction

Nanocrystalline SAPO-34 catalysts were obtained using microwave-assisted hydrothermal synthesis. Compared to conventional heating, the use of microwave irradiation shortened the crystallization time from days to several hours, resulted in a lower level of silicon incorporation, which led to slightly...

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Bibliographic Details
Published in:Catalysis science & technology 2014-01, Vol.4 (12), p.4330-4339
Main Authors: Álvaro-Muñoz, T., Sastre, E., Márquez-Álvarez, C.
Format: Article
Language:English
Subjects:
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Catalysts
Crystals
Microwaves
Morphology
Nanocrystals
Ovens
Synthesis
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Summary:Nanocrystalline SAPO-34 catalysts were obtained using microwave-assisted hydrothermal synthesis. Compared to conventional heating, the use of microwave irradiation shortened the crystallization time from days to several hours, resulted in a lower level of silicon incorporation, which led to slightly lower acidity, and modified the crystal size and morphology. The SAPO-34 catalyst synthesized in a microwave oven exhibited a longer lifetime in the methanol-to-olefin reaction due to its thin plate-like crystal morphology, which facilitates accessibility of the reactant to the acid sites.
ISSN:2044-4753
2044-4761
DOI:10.1039/C4CY00775A