Copper-exchanged SSZ-13 and SAPO-34 (Cu/CHA) zeolites catalysts have been
commercially utilized for selective catalytic reduction (SCR) of NO x by NH 3. Despite the …

In recent years, Cu-exchanged small pore zeolites, such as Cu-SSZ-13 and Cu-SAPO-34,
have been commercially applied in diesel after-treatment systems. Several tremendous …

Commercial Cu/SAPO-34 selective catalytic reduction (SCR) catalysts have experienced
unexpected and quite perplexing failure. Understanding the causes at an atomic level is vital …

Recently copper ion-exchanged LTA zeolites were proved to be robust for NH 3-SCR
reaction. In this study, Cu/LTA catalysts with Si/Al= 15 and Cu/Al= 0.4 were synthesized via …

SO 2-poisoning results in deactivation of Cu-CHA SCR under standard SCR conditions;
however regeneration at 700° C completely restores the SCR performance. To understand …

Non-poisoned and P-poisoned Cu/SSZ-13 catalysts with different types of Cu sites, ie,[Cu
(OH)]+ and Cu 2+, were investigated for NH 3-SCR. Phosphorus was found to interact more …

Cu-SAPO-34 shows high catalytic performance in ammonia selective catalytic reduction (NH
3-SCR) of nitrogen oxides (NO x). Complex synthesis methods and environmental pollution …

Cu-SAPO-34 selective catalytic reduction (SCR) catalyst deactivates upon exposure to water
vapor at temperatures lower than 100° C, which deteriorates its application prospects. The …

Cu-exchanged small-pore zeolites have been extensively studied in the past decade as
state-of-the-art selective catalytic reduction (SCR) catalysts for diesel engine exhaust NOx …

The high-efficiency NH3-assisted selective catalytic reduction (NH3-SCR) technology
continues to attract wide attention in diminishing harmful nitrogen oxides (NOx) from diesel …