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Role of Pt(0) in bimetallic (Pt,Fe)-FER catalysts in the N2O decomposition
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SYSNO ASEP 0379902 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Role of Pt(0) in bimetallic (Pt,Fe)-FER catalysts in the N2O decomposition Tvůrce(i) Tabor, Edyta (UFCH-W) RID, ORCID
Jíša, Kamil (UFCH-W)
Nováková, Jana (UFCH-W) RID
Bastl, Zdeněk (UFCH-W) RID, ORCID
Vondrová, Alena (UFCH-W) RID
Závěta, K. (CZ)
Sobalík, Zdeněk (UFCH-W) RIDZdroj.dok. Microporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811
Roč. 165, JAN 2013 (2013), s. 40-47Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova bimetallic Pt,Fe-FER ; Pt-FER ; Pt(0) clusters Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA203/09/1627 GA ČR - Grantová agentura ČR Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000311070500007 EID SCOPUS 84865344606 DOI 10.1016/j.micromeso.2012.07.035 Anotace Presence of metallic Pt clusters highly enhances catalytic activity of iron ferrierite in N2O decomposition, even at low Pt loading (Pt/Al > 0.003). Platinum (II) cations in ferrierite are inactive; only some low activity appears with pre-reduced samples. The behavior of bimetallic Pt,Fe-ferrierites samples is strongly dependent on the sequence of introduction of platinum and iron ions into the ferrierite. This sequence does not affect cationic state of iron ions, however, it changes the state of platinum: metallic Pt clusters are formed in samples where platinum was introduced as the first component. Formation of Pt(0) clusters has been assigned to reduction of Pt ions by the decomposing acetylacetone in solution used for the ion exchange of iron ions. The presence of Pt(0) in iron ferrierite samples changes the composition of the products of decomposition of the surface NOx species formed during the decomposition of nitrous oxide. It decreases the fraction of nitrogen dioxide and increases that of nitric oxide in the desorbing products. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2014
Počet záznamů: 1