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Structural stability of metal containing ferrierite under the conditions of HT-N2O decomposition
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SYSNO ASEP 0511989 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Structural stability of metal containing ferrierite under the conditions of HT-N2O decomposition Author(s) Tabor, Edyta (UFCH-W) RID, ORCID
Mlekodaj, Kinga (UFCH-W) RID, ORCID
Sádovská, Galina (UFCH-W) RID, ORCID
Bernauer, Milan (UFCH-W) ORCID, RID
Klein, Petr (UFCH-W) RID, ORCID
Sazama, Petr (UFCH-W) RID, ORCID
Dědeček, Jiří (UFCH-W) RID, ORCID
Sobalík, Zdeněk (UFCH-W) RIDSource Title Microporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811
Roč. 281, JUN 2019 (2019), s. 15-22Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords n2o decomposition ; fe-fer ; catalytic-properties ; active-sites ; al atoms ; zeolites ; nmr ; framework ; fe-zsm-5 ; state ; Zeolite ; Ferrierite Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects GA14-10251S GA ČR - Czech Science Foundation (CSF) LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001821 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 UT WOS 000466057700004 EID SCOPUS 85062394302 DOI 10.1016/j.micromeso.2019.02.039 Annotation Ferrierite based catalyst is expected to be used for high-temperature decomposition of N2O. The stability of the ferrierite structure and divalent cations in ferrierite in this process were analysed using XRD, SEM, FTIR, Al-27 and Si-29 MAS NMR. This study provides detailed information regarding to Al removal from zeolite that is either involved in the Bronsted acid sites or formation of local cationic sites responsible for bonding divalent cations. The Al atoms, which stabilize divalent cations in cationic positions, have the potential to be resistant to prolonged exposure to the conditions of high-temperature decomposition of N2O. The presence of water led to the destruction of the iron active sites for N2O decomposition in iron ferrierite. Moreover, the negative role of residual sodium ions eventually remaining in the commercial ferrierite was proven to induce the irreversible collapse of the zeolite framework. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0302219
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