Influence of preparation methods on iron-tungsten composite catalyst for NH3-SCR of NO: The active sites and reaction mechanism

2020 ◽  
Vol 503 ◽  
pp. 144190 ◽  
Author(s):  
Qiulin Zhang ◽  
Yaqing Zhang ◽  
Tengxiang Zhang ◽  
Huimin Wang ◽  
YanPing Ma ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Active Sites ◽  
Composite Catalyst ◽  
Preparation Methods ◽  
Nh3 Scr ◽  
Scr Of No

MnO2–Graphene-oxide-scroll–TiO2 composite catalyst for low-temperature NH3-SCR of NO with good steam and SO2 resistance obtained by low-temperature carbon-coating and selective atomic layer deposition

2019 ◽  
Vol 9 (7) ◽  
pp. 1602-1608 ◽  
Author(s):  
Liwei Sun ◽  
Kai Li ◽  
Zeshu Zhang ◽  
Xuefeng Hu ◽  
Heyuan Tian ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Atomic Layer Deposition ◽  
Carbon Coating ◽  
Atomic Layer ◽  
Composite Catalyst ◽  
Nh3 Scr ◽  
Layer Deposition ◽  
Scr Of No ◽  
So2 Resistance

Coating GO at low temperature and selectively depositing TiO2 on oxygen-containing functional groups on GO.

scholarly journals Highly efficient NH3-SCR of NO over MnFeW/Ti catalyst at low temperature: SO2 tolerance and reaction mechanism

Fuel ◽  
2022 ◽  
Vol 307 ◽  
pp. 121805
Author(s):  
Lijun Liu ◽  
Sheng Su ◽  
Dezhi Chen ◽  
Tao Shu ◽  
Xiaotao Zheng ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Low Temperature ◽  
Highly Efficient ◽  
Nh3 Scr ◽  
Scr Of No ◽  
So2 Tolerance

Identifying active sites for fast NH3-SCR of NO/NO2 mixtures over Fe-ZSM-5 by operando EPR and UV–vis spectroscopy

2014 ◽  
Vol 316 ◽  
pp. 103-111 ◽  
Author(s):  
Roxana Pérez Vélez ◽  
Inga Ellmers ◽  
Heming Huang ◽  
Ursula Bentrup ◽  
Volker Schünemann ◽  
...  
Keyword(s):  
Active Sites ◽  
Nh3 Scr ◽  
Scr Of No ◽  
Vis Spectroscopy

Efficient VOx/Ce1–xTixO2Catalysts for Low-Temperature NH3-SCR: Reaction Mechanism and Active Sites Assessed by in Situ/Operando Spectroscopy

ACS Catalysis ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 1693-1705 ◽  
Author(s):  
Thanh Huyen Vuong ◽  
Jörg Radnik ◽  
Jabor Rabeah ◽  
Ursula Bentrup ◽  
Matthias Schneider ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Low Temperature ◽  
Active Sites ◽  
Operando Spectroscopy ◽  
Nh3 Scr

Lead poisoning and regeneration of Mn-Ce/TiO2 catalysts for NH3-SCR of NO at low temperature

2021 ◽  
Vol 49 (1) ◽  
pp. 113-120
Author(s):  
Dong-jie YAN ◽  
Tong GUO ◽  
Ya YU ◽  
Zhao-hui CHEN
Keyword(s):  
Low Temperature ◽  
Lead Poisoning ◽  
Nh3 Scr ◽  
Scr Of No

scholarly journals Novel Preparation of Cu and Fe Zirconia Supported Catalysts for Selective Catalytic Reduction of NO with NH3

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 55
Author(s):  
Katarzyna Świrk ◽  
Ye Wang ◽  
Changwei Hu ◽  
Li Li ◽  
Patrick Da Costa ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Supported Catalysts ◽  
Catalytic Performance ◽  
Experimental Conditions ◽  
One Pot ◽  
Nh3 Scr ◽  
Scr Of No ◽  
Temperature Programmed ◽  
Stationary Sources

Copper and iron promoted ZrO2 catalysts were prepared by one-pot synthesis using urea. The studied catalysts were characterized by XRD, N2 physisorption, XPS, temperature-programmed desorption of NH3 (NH3-TPD), and tested by the selective catalytic reduction by ammonia (NH3-SCR) of NO in the absence and presence of water vapor, under the experimental conditions representative of exhaust gases from stationary sources. The influence of SO2 on catalytic performance was also investigated. Among the studied catalysts, the Fe-Zr sample showed the most promising results in NH3-SCR, being active and highly selective to N2. The addition of SO2 markedly improved NO and NH3 conversions during NH3-SCR in the presence of H2O. The improvement in acidic surface properties is believed to be the cause.

Nb2O5-modified Mn-Ce/AC catalyst with high ZnCl2 and SO2 tolerance for low-temperature NH3-SCR of NO

2021 ◽  
Vol 9 (5) ◽  
pp. 106323
Author(s):  
Yuhan Zhou ◽  
Buxin Su ◽  
Shan Ren ◽  
Zhichao Chen ◽  
Zenghui Su ◽  
...  
Keyword(s):  
Low Temperature ◽  
Nh3 Scr ◽  
Scr Of No ◽  
So2 Tolerance
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