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

Chem Commun (Camb). 2021 Dec 9;57(98):13301-13304. doi: 10.1039/d1cc05401e.

Authors

Mizuho Yabushita¹, Yoshiyasu Imanishi², Ting Xiao^{2

3}, Ryota Osuga², Toshiki Nishitoba⁴, Sachiko Maki^{2

5}, Kiyoshi Kanie^{2

5}, Wenbin Cao³, Toshiyuki Yokoi⁴, Atsushi Muramatsu^{2

5

6}

Affiliations

¹ Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan. m.yabushita@tohoku.ac.jp.
² Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan. mura@tohoku.ac.jp.
³ Department of Inorganic Nonmetallic Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
⁴ Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
⁵ International Center for Synchrotron Radiation Innovation Smart, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
⁶ Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.

PMID: 34812445
DOI: 10.1039/d1cc05401e

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.