Transcription-induced formation of paired Al sites in high-silica CHA-type zeolite framework using Al-rich amorphous aluminosilicate

Mizuho Yabushita; Yoshiyasu Imanishi; Ting Xiao; Ryota Osuga; Toshiki Nishitoba; Sachiko Maki; Kiyoshi Kanie; Wenbin Cao; Toshiyuki Yokoi; Atsushi Muramatsu

doi:10.1039/D1CC05401E

Transcription-induced formation of paired Al sites in high-silica CHA-type zeolite framework using Al-rich amorphous aluminosilicate†

Mizuho Yabushita,

*^a Yoshiyasu Imanishi,‡^b Ting Xiao,‡^bc Ryota Osuga,

^b Toshiki Nishitoba,

§^d Sachiko Maki,^be Kiyoshi Kanie,

^be Wenbin Cao,^c Toshiyuki Yokoi^d and Atsushi Muramatsu*^bef

Author affiliations

* Corresponding authors

^a Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
E-mail: m.yabushita@tohoku.ac.jp

^b Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
E-mail: mura@tohoku.ac.jp

^c Department of Inorganic Nonmetallic Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

^d Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan

^e International Center for Synchrotron Radiation Innovation Smart, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

^f Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan

Abstract

The paired Al species pre-formed in Al-rich amorphous aluminosilicates were transcribed into high-silica CHA-type zeolite frameworks under hydrothermal conditions, which offers a new approach to creating paired Al sites in zeolite frameworks. This Al-pair-rich CHA exhibited a higher Sr²⁺ uptake than the control CHA zeolite synthesized by the conventional procedure.

Chemical Communications

Transcription-induced formation of paired Al sites in high-silica CHA-type zeolite framework using Al-rich amorphous aluminosilicate†

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Transcription-induced formation of paired Al sites in high-silica CHA-type zeolite framework using Al-rich amorphous aluminosilicate

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