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 …
Probing zeolites by vibrational spectroscopies
This review addresses the most relevant aspects of vibrational spectroscopies (IR, Raman
and INS) applied to zeolites and zeotype materials. Surface Brønsted and Lewis acidity and …
and INS) applied to zeolites and zeotype materials. Surface Brønsted and Lewis acidity and …
Location and nature of Cu species in Cu/SAPO-34 for selective catalytic reduction of NO with NH3
Cu/SAPO-34 catalysts have been reported to show much improved activities and durability
for selective catalytic reduction (SCR) of NOx. In this work, we examined the nature of Cu …
for selective catalytic reduction (SCR) of NOx. In this work, we examined the nature of Cu …
Remarkable N2-selectivity enhancement of practical NH3-SCR over Co0. 5Mn1Fe0. 25Al0. 75Ox-LDO: The role of Co investigated by transient kinetic and DFT …
Abstract A Co 0.5 Mn 1 Fe 0.25 Al 0.75 O x-LDO catalyst was developed which showed
excellent performance for the low-temperature NH 3-SCR. NO x conversions∼ 100% were …
excellent performance for the low-temperature NH 3-SCR. NO x conversions∼ 100% were …
Migration of Cu species in Cu/SAPO-34 during hydrothermal aging
L Wang, JR Gaudet, W Li, D Weng - Journal of Catalysis, 2013 - Elsevier
In the present work, we report the migration of copper species in Cu/SAPO-34 during
hydrothermal aging and its role in selective catalytic reduction (SCR) of NO x. Two Cu/SAPO …
hydrothermal aging and its role in selective catalytic reduction (SCR) of NO x. Two Cu/SAPO …
Experimental and kinetic modeling study of NH3-SCR of NOx on Fe-ZSM-5, Cu-chabazite and combined Fe-and Cu-zeolite monolithic catalysts
A comprehensive experimental and modeling study of selective catalytic reduction of NOx
with NH3 was carried out on Fe-ZSM-5 and Cu-chabazite (CHA) catalysts. The experiments …
with NH3 was carried out on Fe-ZSM-5 and Cu-chabazite (CHA) catalysts. The experiments …
The effect of copper loading on the selective catalytic reduction of nitric oxide by ammonia over Cu-SSZ-13
The effect of Cu loading on the selective catalytic reduction of NO x by NH 3 was examined
over a series of Cu ion-exchanged (20–80%) SSZ-13 zeolite catalysts. High NO reduction …
over a series of Cu ion-exchanged (20–80%) SSZ-13 zeolite catalysts. High NO reduction …
Hydrothermal aging alleviates the inhibition effects of NO2 on Cu-SSZ-13 for NH3-SCR
Fresh and hydrothermally aged Cu-SSZ-13 catalysts were tested for the standard and fast
selective catalytic reduction of NO x with NH 3 (NH 3-SCR). Interestingly, NO 2 exhibited …
selective catalytic reduction of NO x with NH 3 (NH 3-SCR). Interestingly, NO 2 exhibited …
Role of Brønsted acidity in NH3 selective catalytic reduction reaction on Cu/SAPO-34 catalysts
L Wang, W Li, SJ Schmieg, D Weng - Journal of Catalysis, 2015 - Elsevier
In the present work, a series of Cu/SAPO-34 catalysts with varying number of Brønsted acid
sites has been prepared by ion exchanging with potassium to investigate the role of …
sites has been prepared by ion exchanging with potassium to investigate the role of …
The opportunities and challenges of iron-zeolite as NH3-SCR catalyst in purification of vehicle exhaust
Q Liu, C Bian, S Ming, L Guo, S Zhang, L Pang… - Applied Catalysis A …, 2020 - Elsevier
Selective catalytic reduction of NO x with NH 3 over zeolite catalysts is recognized as the
most practical technology used in mobile exhaust gases to transform NO x into N 2. Despite …
most practical technology used in mobile exhaust gases to transform NO x into N 2. Despite …