Recent advances in hybrid metal oxide–zeolite catalysts for low-temperature selective catalytic reduction of NOx by ammonia
A hybrid catalytic system comprised of metal oxide and Cu or Fe exchanged zeolite
components represents a potential advancement of state-of-the-art for selective catalytic …
components represents a potential advancement of state-of-the-art for selective catalytic …
Zeolitic Materials for DeNOx Selective Catalytic Reduction
Y **n, Q Li, Z Zhang - ChemCatChem, 2018 - Wiley Online Library
Selective catalytic reduction (SCR) of NOx has been proven to be the most efficient
technique for the removal of NOx (deNOx) from flue gas of stationary sources and diesel …
technique for the removal of NOx (deNOx) from flue gas of stationary sources and diesel …
Catalysis in a cage: condition-dependent speciation and dynamics of exchanged Cu cations in SSZ-13 zeolites
The relationships among the macroscopic compositional parameters of a Cu-exchanged
SSZ-13 zeolite catalyst, the types and numbers of Cu active sites, and activity for the …
SSZ-13 zeolite catalyst, the types and numbers of Cu active sites, and activity for the …
A Complete Multisite Reaction Mechanism for Low-Temperature NH3-SCR over Cu-CHA
The dynamic character of the active centers has made it difficult to unravel the reaction path
for NH3-assisted selective catalytic reduction (SCR) of nitrogen oxides over Cu-CHA …
for NH3-assisted selective catalytic reduction (SCR) of nitrogen oxides over Cu-CHA …
Mechanistic insights into the promotion of low-temperature NH3-SCR catalysis by copper auto-reduction in Cu-zeolites
The performance of Cu-chabazite (Cu-CHA) zeolite, the state-of-art catalyst for the ammonia-
assisted selective reduction (NH 3-SCR) of toxic NO x pollutants from heavy-duty diesel …
assisted selective reduction (NH 3-SCR) of toxic NO x pollutants from heavy-duty diesel …
Zeolite structure effects on Cu active center, SCR performance and stability of Cu-zeolite catalysts
H Wang, R Xu, Y **, R Zhang - Catalysis Today, 2019 - Elsevier
In this study, comparative studies over nine NH 3-SCR Cu-zeolites with different topologies
were conducted. A clear trend was observed that the NH 3-SCR performance was gradually …
were conducted. A clear trend was observed that the NH 3-SCR performance was gradually …
Nanoscale tomography reveals the deactivation of automotive copper-exchanged zeolite catalysts
Copper-exchanged zeolite chabazite (Cu-SSZ-13) was recently commercialized for the
selective catalytic reduction of NO X with ammonia in vehicle emissions as it exhibits …
selective catalytic reduction of NO X with ammonia in vehicle emissions as it exhibits …
Application progress of small-pore zeolites in purifying NOx from motor vehicle exhaust
H Cheng, X Tang, H Yi, R Pan, J Zhang, F Gao… - Chemical Engineering …, 2022 - Elsevier
Lean-burn mode results in the high NOx emission of diesel vehicles despite its high fuel
economy. NOx can be effectively removed by the SCR unit during normal operation …
economy. NOx can be effectively removed by the SCR unit during normal operation …
Activation of Oxygen on (NH3CuNH3)+ in NH3-SCR over Cu-CHA
Cu-CHA materials are efficient catalysts for NH 3–SCR of NO x in oxygen excess. A crucial
step in the reaction is oxygen (O 2) activation, which still is not well understood. Density …
step in the reaction is oxygen (O 2) activation, which still is not well understood. Density …
Interpretation of NH3-TPD Profiles from Cu-CHA Using First-Principles Calculations
Temperature-programmed desorption (TPD) with ammonia is widely used for zeolite
characterization revealing information on acidity and adsorption sites. The interpretation of …
characterization revealing information on acidity and adsorption sites. The interpretation of …