Palˇci´c, Ana
[Author];
Bruzzese, Paolo Cleto
[Author];
Pyra, Kamila
[Author];
Bertmer, Marko
[Author];
Góra-Marek, Kinga
[Author];
Poppitz, David
[Author];
Pöppl, Andreas
[Author];
Gläser, Roger
[Author];
Jabło´nska, Magdalena
[Author]
Nanosized Cu-SSZ-13 and Its Application in NH3-SCR
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Media type:
E-Article
Title:
Nanosized Cu-SSZ-13 and Its Application in NH3-SCR
Contributor:
Palˇci´c, Ana
[Author];
Bruzzese, Paolo Cleto
[Author];
Pyra, Kamila
[Author];
Bertmer, Marko
[Author];
Góra-Marek, Kinga
[Author];
Poppitz, David
[Author];
Pöppl, Andreas
[Author];
Gläser, Roger
[Author];
Jabło´nska, Magdalena
[Author]
Footnote:
Hinweis: Link zur Erstveröffentlichung URL: https://doi.org/10.3390/catal10050506
Description:
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.