Fluoride-assisted synthesis of bimodal microporous SSZ-13 zeolite

Xiaochun Zhu; Nikolay Kosinov; Jan P. Hofmann; Brahim Mezari; Qingyun Qian; Roderigh Rohling; Bert M. Weckhuysen; Javier Ruiz-Martínez; Emiel J. M. Hensen

doi:10.1039/C6CC00201C

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Fluoride-assisted synthesis of bimodal microporous SSZ-13 zeolite†

Xiaochun Zhu,^a Nikolay Kosinov,^a Jan P. Hofmann,

^a Brahim Mezari,^a Qingyun Qian,^b Roderigh Rohling,^a Bert M. Weckhuysen,^b Javier Ruiz-Martínez^b and Emiel J. M. Hensen*^a

Author affiliations

* Corresponding authors

^a Inorganic Materials Chemistry Group, Schuit Institute of Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology 5600 MB, Eindhoven, The Netherlands
E-mail: e.j.m.hensen@tue.nl

^b Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Department of Chemistry, Faculty of Science, Utrecht University 3584 CG, Utrecht, The Netherlands

Abstract

The presence of small amount of fluoride in alkaline hydrothermal synthesis of SSZ-13 zeolite yields bimodal microporous particles with substantially improved performance in the methanol-to-olefins (MTO) reaction. Hydrocarbon uptake measurements and fluorescence microspectroscopy of spent catalysts demonstrate enhanced diffusion through micropores at the grain boundaries of nanocrystals running through the zeolite particles. Fluoride-assisted SSZ-13 synthesis is a cheap and scalable approach to optimize the performance of MTO zeolite catalysts.

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DOI: https://doi.org/10.1039/C6CC00201C
Article type: Communication
Submitted: 08 Jan 2016
Accepted: 20 Jan 2016
First published: 20 Jan 2016
This article is Open Access

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Chem. Commun., 2016,52, 3227-3230

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Fluoride-assisted synthesis of bimodal microporous SSZ-13 zeolite

X. Zhu, N. Kosinov, J. P. Hofmann, B. Mezari, Q. Qian, R. Rohling, B. M. Weckhuysen, J. Ruiz-Martínez and E. J. M. Hensen, Chem. Commun., 2016, 52, 3227 DOI: 10.1039/C6CC00201C

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Chemical Communications

Fluoride-assisted synthesis of bimodal microporous SSZ-13 zeolite†

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Fluoride-assisted synthesis of bimodal microporous SSZ-13 zeolite

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