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Nakazawa N, Ikeda T, Hiyoshi N, et al. A Microporous Aluminosilicate with 12-, 12-, and 8-Ring Pores and Isolated 8-Ring Channels. J Am Chem Soc. 2017;139(23):7989-7997doi: 10.1021/jacs.7b03308.
Nakazawa, N., Ikeda, T., Hiyoshi, N., Yoshida, Y., Han, Q., Inagaki, S., & Kubota, Y. (2017). A Microporous Aluminosilicate with 12-, 12-, and 8-Ring Pores and Isolated 8-Ring Channels. Journal of the American Chemical Society, 139(23), 7989-7997. https://doi.org/10.1021/jacs.7b03308
Nakazawa, Naoto, et al. "A Microporous Aluminosilicate with 12-, 12-, and 8-Ring Pores and Isolated 8-Ring Channels." Journal of the American Chemical Society vol. 139,23 (2017): 7989-7997. doi: https://doi.org/10.1021/jacs.7b03308
Nakazawa N, Ikeda T, Hiyoshi N, Yoshida Y, Han Q, Inagaki S, Kubota Y. A Microporous Aluminosilicate with 12-, 12-, and 8-Ring Pores and Isolated 8-Ring Channels. J Am Chem Soc. 2017 Jun 14;139(23):7989-7997. doi: 10.1021/jacs.7b03308. Epub 2017 Jun 05. PMID: 28581728.
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J Am Chem Soc. 2017 Jun 14;139(23):7989-7997. doi: 10.1021/jacs.7b03308. Epub 2017 Jun 05.

A Microporous Aluminosilicate with 12-, 12-, and 8-Ring Pores and Isolated 8-Ring Channels.

Journal of the American Chemical Society

Naoto Nakazawa, Takuji Ikeda, Norihito Hiyoshi, Yuka Yoshida, Qiao Han, Satoshi Inagaki, Yoshihiro Kubota

Affiliations

  1. Division of Materials Science and Chemical Engineering, Yokohama National University , 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
  2. National Institute of Advanced Industrial Science and Technology , 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan.

PMID: 28581728 DOI: 10.1021/jacs.7b03308

Abstract

Synthesis of new zeolites with controlled pore architectures is important in the field of catalysis and separation related to chemical transformation, environmental protection, and energy-saving. Zeolites containing channels of different sizes in the same framework have been desirable. We report here the synthesis and structure of a novel aluminosilicate zeolite (designated as YNU-5), the first zeolite containing interconnected 12-, 12-, and 8-ring pores, as well as independent straight 8-ring channels. The synthesis procedure is quite simple and consists of conventional hydrothermal conditions as well as readily available starting materials. The framework structure is stable enough and Si/Al ratio is controllable between 9 and 350. Determination of the crystal structure is performed by utilizing X-ray diffraction-based techniques, revealing 9 independent tetrahedrally coordinated atoms. This robust structure is expected to be industrially valuable and several unusual combinations of composite building units are of considerable interest in an academic sense. The new zeolite YNU-5 is promising catalyst for the production of useful light olefins such as propylene and butylenes in the dimethyl ether-to-olefin reaction, when the Si/Al ratio is properly tuned by dealumination through simple acid treatments.

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