Szczegóły publikacji
Opis bibliograficzny
Standard and fast selective catalytic reduction of NO with $NH_{3}$ on zeolites $Fe-BEA$ / Magdalena Jabłońska, Gérard Delahay, Krzysztof Kruczała, Artur Błachowski, Karolina A. Tarach, Kamila BRYLEWSKA, Carolina Petitto, and Kinga Góra-Marek // Journal of Physical Chemistry. C ; ISSN 1932-7447. — 2016 — vol. 120 iss. 30, s. 16831–16842. — Bibliogr. s. 16840–16842, Abstr. — Publikacja dostępna online od: 2016-07-06. — K. Brylewska - pierwsza afiliacja: Jagiellonian University
Autorzy (8)
- Jabłońska Magdalena
- Delahay Gérard
- Kruczała Krzysztof
- Błachowski Artur
- Tarach Karolina A.
- AGHWojciechowska Kamila
- Petitto Carolina
- Góra-Marek Kinga
Dane bibliometryczne
| ID BaDAP | 100579 |
|---|---|
| Data dodania do BaDAP | 2016-09-29 |
| DOI | 10.1021/acs.jpcc.6b05692 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Physical Chemistry, C |
Abstract
Two Fe-containing BEA zeolites were prepared by ion-exchange (IE; Fe-BEA) and postsynthesis (PS; Fe-BEA/DeAl) procedures. Similar Fe content (0.8 to 0.9 Fe wt %) was evidenced for studied samples. Fe-BEA, prepared by ion exchange, contained essentially iron cations at the exchange sites of the zeolite. These iron cations are either isolated or bridged through an oxygen atom (Fe-oxo cations). In Fe-BEA/DeAl, a high portion of iron was introduced in the T-positions of zeolite lattice. The other part was either at an exchange positions or deposited as oxide clusters on the outer surface of zeolite grains. For Fe-BEA, significantly higher acidity than for Fe-BEA/DeAl was evidenced by FT-IR studies with adsorption of NH3 and CO. The catalytic performance of Fe-BEA and Fe-BEA/DeAl was investigated in standard selective catalytic reduction (SCR) (NO2/NO = 0) and fast SCR (NO2/NO = 0.85). Fe-BEA revealed high catalytic activity in both SCR NOx reactions; however, production of N2O was much more apparent over this catalyst than over Fe-BEA/DeAl. In line with EPR and IR studies, the isolated or bridged-through-an-oxygen-atom extraframework iron oxo-sites in Fe-BEA were found to deliver higher catalytic activity than the iron oxo-sites in tetrahedral framework positions in Fe-BEA/DeAl.
