Low-temperature selective catalytic reduction of NO with NH3 over Ni–Mn–Ox catalysts

RSC Advances ◽  
2016 ◽  
Vol 6 (109) ◽  
pp. 107270-107277 ◽  
Author(s):  
Peipei Zhang ◽  
Yan Sun ◽  
Wei Su ◽  
Yajuan Wei ◽  
Jia Liu
Keyword(s):  
Low Temperature ◽  
High Activity ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Template Method ◽  
Hard Template ◽  
Reduction Of No ◽  
Hard Template Method

A series of Ni(n)–MnOx catalysts with high activity for the low temperature NH3-SCR have been synthesized by a hard template method.

Investigation of Cu Species in CuBTC: Active Sites for Selective Catalytic Reduction of NO with NH3

2015 ◽  
Vol 1118 ◽  
pp. 133-141 ◽  
Author(s):  
Chun Yan Li ◽  
Yong Shi ◽  
Hao Zhang ◽  
Fang Hong Xue
Keyword(s):  
Low Temperature ◽  
High Activity ◽  
Selective Catalytic Reduction ◽  
Active Sites ◽  
Catalytic Reduction ◽  
Metal Organic Frameworks ◽  
Activity Data ◽  
Metal Centers ◽  
Reduction Of No ◽  
Metal Organic

The classical metal-organic Frameworks CuBTC showed remarkable low temperature activity in selective catalytic reduction of NO with NH3 (NH3-SCR). It was found the conversion of NO can reach as high as 100% in the range 210-300 °C on the activated sample. The nature of the active Cu species among CuBTC in NH3-SCR based on the activity data were characterized by TEM, XPS, XRD, EPR and IR. This high activity is not only due to the unsaturated metal centers of the frameworks, but also to the presence of high-dispersed Cu2O particles. Both Cu2+ and Cu+ species are the active sites for NH3-SCR.

Modification of MnCo2Ox catalysts by NbOx for low temperature selective catalytic reduction of NO with NH3

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97004-97011 ◽  
Author(s):  
Tengfei Xu ◽  
Can Wang ◽  
Xiaodong Wu ◽  
Baohuai Zhao ◽  
Ze Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Activity ◽  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
Co Precipitation

Among the NbOx modified MnCo2Ox catalysts by co-precipitation, MnCo2Nb0.5Ox presented high activity, N2 selectivity and H2O resistance for NH3-SCR reaction at low temperatures.

Effect of Fe on the Selective Catalytic Reduction of NO by NH3 at Low Temperature over Mn/CeO2-TiO2 Catalyst

2012 ◽  
Vol 27 (5) ◽  
pp. 495-500 ◽  
Author(s):  
Da-Wang WU ◽  
Qiu-Lin ZHANG ◽  
Tao LIN ◽  
Mao-Chu GONG ◽  
Yao-Qiang CHEN
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No

A Ce-Zr-Ti Oxide Catalyst for Selective Catalytic Reduction of NO with Ammonia

2014 ◽  
Vol 535 ◽  
pp. 709-712
Author(s):  
Ye Jiang ◽  
Yan Yan ◽  
Shan Bo Huang ◽  
Xiong Zhang ◽  
Xin Wei Wang ◽  
...  
Keyword(s):  
High Activity ◽  
Selective Catalytic Reduction ◽  
Oxide Catalyst ◽  
Catalytic Reduction ◽  
Space Velocity ◽  
Impregnation Method ◽  
Reduction Of No ◽  
No Conversion ◽  
Temperature Range ◽  
Ti Oxides

A Ce-Zr-Ti oxide catalyst was prepared by an impregnation method and tested for the selective catalytic reduction of NO with NH3. The Ce-Zr-Ti oxide catalyst exhibited high activity and more than 95% NO conversion was obtained within the temperature range 300-500 °C at the high gas hourly space velocity of 50,000 h-1. The addition of Zr improved the activity of Ce-Ti oxides especially at higher reaction temperatures and their resistance to SO2.

Fe and Mn mixed oxide catalysts supported on Sn-modified TiO2 for the selective catalytic reduction of NO with NH3 at low temperature

2022 ◽  
Author(s):  
Zhitao Han ◽  
Huan Du ◽  
Duo Xu ◽  
Yu Gao ◽  
Shaolong Yang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Mixed Oxide ◽  
Catalytic Reduction ◽  
Oxide Catalysts ◽  
Reduction Of No ◽  
Sn Doping ◽  
Mixed Oxide Catalysts ◽  
Fe And Mn ◽  
Low Temperature Scr

FeMn/SnxTiO2 catalysts were synthesized by introducing Sn as an additive to modify TiO2 supports, and the Sn doping could improve the SO2 tolerance and low-temperature SCR activity significantly.

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