Selective catalytic reduction of NOx with NH3: opportunities and challenges of Cu-based small-pore zeolites
Zeolites, as efficient and stable catalysts, are widely used in the environmental catalysis
field. Typically, Cu-SSZ-13 with small-pore structure shows excellent catalytic activity for …
field. Typically, Cu-SSZ-13 with small-pore structure shows excellent catalytic activity for …
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 …
Interface Engineering of a Bifunctional Cu-SSZ-13@CZO Core–Shell Catalyst for Boosting Potassium Ion and SO2 Tolerance
The poisoning of sulfur oxides and alkali metals emitted from diesel exhaust to active sites of
copper ion-exchanged chabazite (Cu-CHA) catalysts is still present and remains a …
copper ion-exchanged chabazite (Cu-CHA) catalysts is still present and remains a …
Comparative analysis of the dual origins of the N 2 O byproduct on MnO x, FeO x, and MnFeO x sphere catalysts for a low-temperature SCR of NO with NH 3
Herein, the origin and evolution mechanism of N2O formation over the MnFeOx spherical
catalyst were investigated in detail, accompanied by a comparison analysis of pristine MnOx …
catalyst were investigated in detail, accompanied by a comparison analysis of pristine MnOx …
Interplay between copper redox and transfer and support acidity and topology in low temperature NH3-SCR
Low-temperature standard NH3-SCR over copper-exchanged zeolite catalysts occurs on
NH3-solvated Cu-ion active sites in a quasi-homogeneous manner. As key kinetically …
NH3-solvated Cu-ion active sites in a quasi-homogeneous manner. As key kinetically …
Recent progress in the improvement of hydrothermal stability of zeolites
R Simancas, A Chokkalingam, SP Elangovan, Z Liu… - Chemical …, 2021 - pubs.rsc.org
Zeolites have been successfully employed in many catalytic reactions of industrial
relevance. The severe conditions required in some processes, where high temperatures are …
relevance. The severe conditions required in some processes, where high temperatures are …
Recent progress of metal-exchanged zeolites for selective catalytic reduction of NOx with NH3 in diesel exhaust
X Wang, Y Xu, Z Zhao, J Liao, C Chen, Q Li - Fuel, 2021 - Elsevier
In recent years, selective catalytic reduction (SCR) with NH 3 technology has been
extensively applied in the removal of nitrogen oxide (NO x) from diesel exhaust due to its …
extensively applied in the removal of nitrogen oxide (NO x) from diesel exhaust due to its …
Activating low-temperature NH3-SCR catalyst by breaking the strong interface between acid and redox sites: A case of model Ce2 (SO4) 3-CeO2 study
The occurrence of NH 3-SCR (selective catalytic reduction of NO with NH 3) reaction on
catalyst surface typically requires acid and redox sites. However, the role of acid-redox …
catalyst surface typically requires acid and redox sites. However, the role of acid-redox …
Efficient and selective dual-pathway polyolefin hydro-conversion over unexpectedly bifunctional M/TiO2-anatase catalysts
The huge scale of plastic waste generation and its environmental consequences drive the
demands for catalytic plastic upcycling processes. Here, we report efficient polypropylene …
demands for catalytic plastic upcycling processes. Here, we report efficient polypropylene …
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 …