Atomic-scale insights into the Cu ion distribution in zeolites used for ammonia selective catalytic reduction during early hydrothermal degradation
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.
Authors
- Takahiko Takewaki
- Katsuaki Nakazawa (ORCID: https://orcid.org/0000-0002-6056-5615)
- Masahiko Shimizu (ORCID: https://orcid.org/0009-0009-3107-6829)
- Hisashi Shima (ORCID: https://orcid.org/0000-0002-9521-7362)
- Ayako Hashimoto (ORCID: https://orcid.org/0000-0002-1985-7667)
- Hajime Matsumoto
- Kazutaka Mitsuishi
Institutions
- University of Tsukuba (JP)
- Mitsubishi Chemical (Japan) (JP)
- National Institute for Materials Science (JP)
- Tsukuba University of Technology (JP)
Publication Details
- Journal
- Chemical Communications
- Published
- 2026-01-01
- DOI
- https://doi.org/10.1039/d5cc06274h
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Japan Society for the Promotion of Science
- National Institute for Materials Science