Atomic-scale insights into the Cu ion distribution in zeolites used for ammonia selective catalytic reduction during early hydrothermal degradation

Masahiko Shimizu; Katsuaki Nakazawa; Hisashi Shima; Hajime Matsumoto; Takahiko Takewaki; Kazutaka Mitsuishi; Ayako Hashimoto

doi:10.1039/d5cc06274h

Journal article Atomic-scale insights into the Cu ion distribution in zeolites used for ammonia selective catalytic reduction during early hydrothermal degradation

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Masahiko Shimizu, Katsuaki Nakazawa, Hisashi Shima, Hajime Matsumoto, Takahiko Takewaki, Kazutaka Mitsuishi, Ayako Hashimoto. Atomic-scale insights into the Cu ion distribution in zeolites used for ammonia selective catalytic reduction during early hydrothermal degradation. Chemical Communications. 2026, 62 (10), 3260-3264. https://doi.org/10.1039/d5cc06274h

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(abstract)

Early hydrothermal degradation of Cu-SSZ-13 and Cu-SSZ-39 zeolites with similar Cu content was investigated. Electron ptychography revealed the Cu occupancy at the eight-membered ring sites of Cu-SSZ-39 is lower than that of Cu-SSZ-13, clearly demonstrating that the former is more stable than the latter under hydrothermal aging conditions.

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https://creativecommons.org/licenses/by-nc/3.0/

Keyword: zeolite, electron ptychography, NH3-SCR

Date published: 2026-01-08

Publisher: Royal Society of Chemistry (RSC)

Journal:

Chemical Communications (ISSN: 1364548X) vol. 62 issue. 10 p. 3260-3264

Funding:

National Institute for Materials Science JPMXP1224NM5123
Japan Society for the Promotion of Science 24K15598

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1039/d5cc06274h

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Updated at: 2026-03-25 08:31:08 +0900

Published on MDR: 2026-03-25 12:24:37 +0900

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