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

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

Chemical Communications 2026 Open access

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Authors: Masahiko Shimizu, Katsuaki Nakazawa, Hisashi Shima, Hajime Matsumoto, Takahiko Takewaki, Kazutaka Mitsuishi, Ayako Hashimoto

DOI: 10.1039/d5cc06274h

Cited by: 0

References: 40

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.

Fields of Study & Subjects

Catalytic Processes in Materials Science Zeolite Catalysis and Synthesis Ammonia Synthesis and Nitrogen Reduction

Publication details

Journal / source: Chemical Communications
Volume: 62
Issue: 10
Pages: 3260–3264
Publication date: 1 January 2026
Language: EN

References 40