Solvation and mobilization of copper active sites in zeolites by ammonia: consequences for the catalytic reduction of nitrogen oxides
Conspectus Copper-exchanged chabazite (Cu-CHA) zeolites are catalysts used in diesel
emissions control for the abatement of nitrogen oxides (NO x) via selective catalytic …
emissions control for the abatement of nitrogen oxides (NO x) via selective catalytic …
Influence of ion mobility on the redox and catalytic properties of Cu ions in zeolites
This contribution aims at analysing the current understanding about the influence of Al
distribution, zeolite topology, ligands/reagents and oxidation state on ions mobility in Cu …
distribution, zeolite topology, ligands/reagents and oxidation state on ions mobility in Cu …
Structure and Reactivity of Oxygen-Bridged Diamino Dicopper(II) Complexes in Cu-Ion-Exchanged Chabazite Catalyst for NH3-Mediated Selective Catalytic …
The NH3-mediated selective catalytic reduction (NH3-SCR) of NOx over Cu-ion-exchanged
chabazite (Cu-CHA) catalysts is the basis of the technology for abatement of NOx from …
chabazite (Cu-CHA) catalysts is the basis of the technology for abatement of NOx from …
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 …
Cu-ZSM-5 catalyst impregnated with Mn–Co oxide for the selected catalytic reduction of NO: physicochemical property–catalytic activity relationship and in situ …
H Xue, X Guo, T Meng, Q Guo, D Mao, S Wang - ACS Catalysis, 2021 - ACS Publications
A series of MnCo/Cu-ZSM-5 (MnCo/Cu-Z) catalysts with different Mn/Co ratios for the
selective catalytic reduction (SCR) of NO with NH3 were prepared by the combination of ion …
selective catalytic reduction (SCR) of NO with NH3 were prepared by the combination of ion …
Probing active-site relocation in Cu/SSZ-13 SCR catalysts during hydrothermal aging by in situ EPR spectroscopy, kinetics studies, and DFT calculations
Cu/SSZ-13 selective catalytic reduction catalysts display activity loss after mild hydrothermal
aging without support degradation or loss of isolated Cu cation content. By applying electron …
aging without support degradation or loss of isolated Cu cation content. By applying electron …
First-Principles Microkinetic Model for Low-Temperature NH3-Assisted Selective Catalytic Reduction of NO over Cu-CHA
A first-principles microkinetic model is developed to investigate the low-temperature
ammonia-assisted selective catalytic reduction (NH3-SCR) of NO over Cu-chabazite (Cu …
ammonia-assisted selective catalytic reduction (NH3-SCR) of NO over Cu-chabazite (Cu …
Transient Kinetic Analysis of Low-Temperature NH3-SCR over Cu-CHA Catalysts Reveals a Quadratic Dependence of Cu Reduction Rates on CuII
We combine gas phase Transient Response Methods with Transient Kinetic Analysis to
investigate the reduction half-cycle (RHC: CuII→ CuI) of the Standard SCR redox …
investigate the reduction half-cycle (RHC: CuII→ CuI) of the Standard SCR redox …
Spectroscopic evidence of efficient generation of dicopper intermediate in selective catalytic reduction of NO over Cu-ion-exchanged zeolites
A Oda, H Shionoya, Y Hotta, T Takewaki… - ACS …, 2020 - ACS Publications
The key reactive sites in the selective catalytic reduction (SCR) of NO using ammonia (NH3–
SCR) are the Cu (II)/Cu (I) ammine complexes encapsulated within zeolite catalysts. The …
SCR) are the Cu (II)/Cu (I) ammine complexes encapsulated within zeolite catalysts. The …
An experimental and modelling study of the reactivity of adsorbed NH3 in the low temperature NH3-SCR reduction half-cycle over a Cu-CHA catalyst
The reactivity of Lewis and Brønsted ammonia in the reduction half-cycle (RHC) of the NH 3-
SCR low temperature redox mechanism was studied over a model Cu− CHA catalyst by …
SCR low temperature redox mechanism was studied over a model Cu− CHA catalyst by …