Mechanism for Cu-enhanced hydrothermal stability of Cu–CHA for NH3-SCR

Exposure of acidic zeolite-based catalysts to water at high temperatures generally leads to deactivation due to dealumination. In Cu–CHA zeolite, which is a preferred catalyst for the selective catalytic reduction of NO by NH3 (NH3-SCR), the acidic protons in the zeolite are partially exchanged by C...

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Veröffentlicht in:	Catalysis science & technology 2024, Vol.14 (12), p.3407-3415
Hauptverfasser:	Singh, Shivangi, Janssens, Ton V W, Grönbeck, Henrik
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Ammonia Catalysts Chemical reduction Copper oxides Density functional theory High temperature Phase diagrams Reaction mechanisms Selective catalytic reduction Stability Zeolites
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