Low temperature selective catalytic reduction of NOx with NH3 with improved SO2 and water resistance by using N-doped graphene dots-CuO–CeO2 nano-heterostructures modified vanadate catalysts

Low temperature selective catalytic reduction of NOx with NH3 with improved SO2 and water resistance by using N-doped graphene dots-CuO–CeO2 nano-heterostructures modified vanadate catalysts

[Display omitted] •Atomically CuO–CeO2-N-GQDs heterostructure widens the NH3-SCR window of 4V1W/Ti.•Boosted SCR performance (∼92%) with superior SO2 and water resistance at 200 °C.•2.8CuCe-1N-GQDs-4V1W/Ti possesses the outstanding SO2 resistance (∼93% at 54 h).•CuO–CeO2 improves the fast SCR while N...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied surface science 2023-06, Vol.623, p.157088, Article 157088
Hauptverfasser: Choi, Sung Yeol, Purbia, Rahul, Kim, Hee Jun, Kim, Jin-Kyeom, Kim, Sun-Woo, Mo, Jeongeun, Ye, Bora, Jeong, Bora, Lee, Duck Hyun, Kim, Dokyoung, Park, Hyesung, Kim, Hong-Dae, Baik, Jeong Min
Format: Artikel
Sprache:eng
Schlagworte:
CuO-CeO2
Low-temperature
N-doped graphene quantum dots
NH3-SCR
SO2 and water resistance
Vanadate
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:[Display omitted] •Atomically CuO–CeO2-N-GQDs heterostructure widens the NH3-SCR window of 4V1W/Ti.•Boosted SCR performance (∼92%) with superior SO2 and water resistance at 200 °C.•2.8CuCe-1N-GQDs-4V1W/Ti possesses the outstanding SO2 resistance (∼93% at 54 h).•CuO–CeO2 improves the fast SCR while N-GQDs enhances NO2 adsorption.•CuO–CeO2-N-GQDs promotes the redox, NOx adsorption and acidic properties. Herein, we report a facile strategy for efficient NH3-SCR catalytic performance of vanadate-based catalysts with superior sulfur and water resistance at low temperature (
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2023.157088