- AutorIn
- Ana Palˇci´c
- Paolo Cleto Bruzzese
- Kamila Pyra
- Marko Bertmer
- Kinga Góra-Marek
- David Poppitz
- Andreas Pöppl
- Roger Gläser
- Magdalena Jabło´nska
- Titel
- Nanosized Cu-SSZ-13 and Its Application in NH3-SCR
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa2-847306
- Quellenangabe
- Catalysts : open access journal
Erscheinungsjahr: 2020
Jahrgang: 10
Heft: 5
E-ISSN: 2073-4344
Artikelnummer: 506 - Erstveröffentlichung
- 2020
- Abstract (EN)
- Nanosized SSZ-13 was synthesized hydrothermally by applying N,N,N-trimethyl-1-adamantammonium hydroxide (TMAdaOH) as a structure-directing agent. In the next step, the quantity of TMAdaOH in the initial synthesis mixture of SSZ-13 was reduced by half. Furthermore, we varied the sodium hydroxide concentration. After ion-exchange with copper ions (Cu2+ and Cu+), the Cu-SSZ-13 catalysts were characterized to explore their framework composition (XRD, solid-state NMR, ICP-OES), texture (N2-sorption, SEM) and acid/redox properties (FT-IR, TPR-H2, DR UV-Vis, EPR). Finally, the materials were tested in the selective catalytic reduction of NOx with ammonia (NH3-SCR). The main difference between the Cu-SSZ-13 catalysts was the number of Cu2+ in the double six-membered ring (6MRs). Such copper species contribute to a high NH3-SCR activity. Nevertheless, all materials show comparable activity in NH3-SCR up to 350 °C. Above 350 °C, NO conversion decreased for Cu-SSZ-13(2–4) due to side reaction of NH3 oxidation.
- Andere Ausgabe
- Link zur Erstveröffentlichung
Link: https://doi.org/10.3390/catal10050506 - Freie Schlagwörter (DE)
- chabazite; SSZ-13; preparation method; copper species; IR spectroscopy; NH3-SCR
- Klassifikation (DDC)
- 540
- Verlag
- MDPI, Basel
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa2-847306
- Veröffentlichungsdatum Qucosa
- 17.04.2023
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
- CC BY 4.0