Recent advances in hybrid metal oxide–zeolite catalysts for low-temperature selective catalytic reduction of NOx by ammonia

T Andana, KG Rappe, F Gao, J Szanyi… - Applied Catalysis B …, 2021 - Elsevier
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 …

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 …

On the Redox Mechanism of Low‐Temperature NH3‐SCR over Cu‐CHA: A Combined Experimental and Theoretical Study of the Reduction Half Cycle

W Hu, T Selleri, F Gramigni, E Fenes… - Angewandte Chemie …, 2021 - Wiley Online Library
Cu‐CHA is the state‐of‐the‐art catalyst for the Selective Catalytic Reduction (SCR) of NOx
in vehicle applications. Although extensively studied, diverse mechanistic proposals still …

Dynamic Binuclear CuII Sites in the Reduction Half-Cycle of Low-Temperature NH3–SCR over Cu-CHA Catalysts

W Hu, F Gramigni, ND Nasello, N Usberti… - ACS …, 2022 - ACS Publications
As the state-of-the-art catalyst for the selective catalytic reduction (SCR) of NOx from lean-
burn engines, Cu-exchanged chabazite zeolite (Cu-CHA) has been a spotlight in …

Improvement in activity and alkali resistance of a novel V-Ce (SO4) 2/Ti catalyst for selective catalytic reduction of NO with NH3

W Hu, Y Zhang, S Liu, C Zheng, X Gao, I Nova… - Applied Catalysis B …, 2017 - Elsevier
A series of V-Ce (SO 4) 2/Ti catalysts for selective catalytic reduction (SCR) of NO with
ammonia are prepared by impregnation method. Low temperature SCR activity and alkali …

In Situ/Operando Spectroscopic Studies on the NH3–SCR Mechanism over Fe–Zeolites

S Yasumura, Y Qian, T Kato, S Mine, T Toyao… - ACS …, 2022 - ACS Publications
Reduction/oxidation half-cycles of the selective catalytic reduction of NO with NH3 (NH3–
SCR) over Fe-exchanged mordenite (MOR) zeolites at 300° C were investigated by in …

Synergetic Effect of K Sites and Pt Nanoclusters in an Ordered Hierarchical Porous Pt-KMnOx/Ce0.25Zr0.75O2 Catalyst for Boosting Soot Oxidation

J Xiong, Y Wei, Y Zhang, P Zhang, Q Yu, X Mei… - Acs …, 2020 - ACS Publications
We have designed and elaborately fabricated the ordered hierarchical macro-meso-
microporous catalysts of Ce0. 25Zr0. 75O2-supported Pt-embedded KMnO x nanoparticles …

NOx removal with efficient recycling of NO2 from iron-ore sintering flue gas: A novel cyclic adsorption process

Y Liu, Y You, Z Li, X Yang, X Wu, C Zhao, Y Xing… - Journal of Hazardous …, 2021 - Elsevier
Conventional flue gas nitrogen oxides (NO x) abatement technologies commonly convert
NO x into harmless compounds, while less effort has been made to recycle NO 2 as a …

Temperature sensitivity of the selective catalytic reduction (SCR) performance of Ce–TiO2 in the presence of SO2

W Zhang, G Liu, J Jiang, Y Tan, Q Wang, C Gong… - Chemosphere, 2020 - Elsevier
Abstract Cerium titanate catalyst (Ce–TiO 2) is competitive as a substitute for the commercial
SCR (selective catalytic reduction) catalysts VO 5–WO 2/TiO 2 due to its high SCR activity …

Fe/Beta@ SBA‐15 core‐shell catalyst: Interface stable effect and propene poisoning resistance for no abatement

J Liu, J Liu, Z Zhao, J Tan, Y Wei, W Song - AIChE Journal, 2018 - Wiley Online Library
A series of Fe/Beta@ SBA‐15 core‐shell structural catalysts were designed and controllablly
constructed by an ultradilute liquid‐phase coating method. Their catalytic activities were …