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Simultaneous FTIR/UV-Vis study of reactions over metallo-zeolites. Approach to quantitative in situ studies
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SYSNO ASEP 0081136 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Simultaneous FTIR/UV-Vis study of reactions over metallo-zeolites. Approach to quantitative in situ studies Title Simultánní FTIR/UV-Vis studie reakcí na zeolitech s obsahem kovů. Přístup ke kvantitativním in situ studiím Author(s) Sobalík, Zdeněk (UFCH-W) RID
Jíša, Kamil (UFCH-W)
Jirglová, Hana (UFCH-W) RID, ORCID
Bernauer, B. (CZ)Source Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 126, 1-2 (2007), s. 73-80Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords metallo-zeolites ; FTIR/UV-Vis ; adsorption ; modeling ; in-situ Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1ET400400413 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA104/06/1254 GA ČR - Czech Science Foundation (CSF) GA203/05/2309 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) DOI 10.1016/j.cattod.2006.11.001 Annotation A new quantitative approach to in situ experiments is proposed based on consistent combination of modeling of the relevant processes in the catalyst pellet with realization of the multi-spectroscopic experiment under dynamic regimes. Using well defined Co- and Fe-FER samples the approach is illustrated by three case studies showing potential of the approach for detail analysis of the processes over metallo-zeolites, i.e. adsorption of NH3 on CoNa-FER, and reactions of selective catalytic reduction of NO by NH3, and N2O decomposition over Fe-FER. Combination of simultaneous in situ FTIR and UV-Vis spectroscopies under transient conditions and a single-pellet reactor model of the spectroscopic cell are used for obtaining some quantitative information on the transport, adsorption/desorption phenomena, and surface species transformation over transition metal ion/zeolite system under such conditions. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2008
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