New insight into the promotion effect of Cu doped V2O5/WO3–TiO2 for low temperature NH3-SCR performance

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 35155-35165 ◽  
Author(s):  
Meiqing Shen ◽  
Chenxu Li ◽  
Jianqiang Wang ◽  
Lili Xu ◽  
Wulin Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Promotion Effect ◽  
Reduction Of No ◽  
Temperature Range ◽  
Nh3 Scr ◽  
Insight Into

The promotion effect of Cu on the V/WTi catalyst for the selective catalytic reduction of NOx by NH3 was investigated in the temperature range of 150–400 °C.

scholarly journals Ce regulated surface properties of Mn/SAPO-34 for improved NH3-SCR at low temperature

RSC Advances ◽  
2020 ◽  
Vol 10 (66) ◽  
pp. 40047-40054
Author(s):  
Qizhi Chen ◽  
Yong Yang ◽  
Hang Luo ◽  
Zuohua Liu ◽  
Zhangfa Tong ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Surface Properties ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
Nh3 Scr

Ce modified MnOx/SAPO-34 was prepared and investigated for low-temperature selective catalytic reduction of NOx with ammonia (NH3-SCR).

scholarly journals Enhancing the low temperature NH3-SCR activity of FeTiOx catalysts via Cu doping: a combination of experimental and theoretical study

RSC Advances ◽  
2018 ◽  
Vol 8 (34) ◽  
pp. 19301-19309 ◽  
Author(s):  
Kai Cheng ◽  
Weiyu Song ◽  
Ying Cheng ◽  
Huiling Zheng ◽  
Lu Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Theoretical Study ◽  
Catalytic Reduction ◽  
Sol Gel ◽  
Cu Doping ◽  
Reduction Of No ◽  
Gel Method ◽  
Nh3 Scr ◽  
Catalytic Performances

A series of FeαCu1−αTiOx catalysts with variable Cu doping amounts was directly synthesized by the sol–gel method and their catalytic performances were tested for the selective catalytic reduction of NO with ammonia.

scholarly journals Precursor Effect on Mn-Fe-Ce/TiO2 Catalysts for Selective Catalytic Reduction of NO with NH3 at Low Temperatures

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 259
Author(s):  
Siva Sankar Reddy Putluru ◽  
Leonhard Schill ◽  
Anker Degn Jensen ◽  
Bernard Siret ◽  
Frank Tabaries ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Photoelectron Spectroscopy ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
X Ray ◽  
Nh3 Scr ◽  
Fast Scr ◽  
Oxide Phases ◽  
Temperature Programmed

Preparation of Mn/TiO2, Mn-Fe/TiO2, and Mn-Fe-Ce/TiO2 by the deposition-precipitation (DP) method can afford very active catalysts for low-temperature NH3-SCR (selective catalytic reduction of NO with NH3). The effect of precursor choice (nitrate vs. acetate) of Mn, Fe, and Ce on the physiochemical properties including thermal stability and the resulting SCR activity were investigated. The resulting materials were characterized by N2-Physisorption, XRD (Powder X-ray diffraction), XPS (X-ray photoelectron spectroscopy), H2-TPR (temperature-programmed reduction with hydrogen), and the oxidation of NO to NO2 measured at 300 °C. Among all the prepared catalysts 5MnAce/Ti, 25Mn0.75AceFe0.25Nit/Ti, and 25Mn0.75AceFe0.20NitCe0.05Ace/Ti showed superior SCR activity at low temperature. The superior activity of the latter two materials is likely attributable to the presence of amorphous active metal oxide phases (manganese-, iron- and cerium-oxide) and the ease of the reduction of metal oxides on TiO2. Enhanced ability to convert NO to NO2, which can promote fast-SCR like pathways, could be another reason. Cerium was found to stabilize amorphous manganese oxide phases when exposed to high temperatures.

scholarly journals Insight into the synergism between MnO2 and acid sites over Mn–SiO2@TiO2 nano-cups for low-temperature selective catalytic reduction of NO with NH3

RSC Advances ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 1979-1986 ◽  
Author(s):  
Siyi Zheng ◽  
Lei Song ◽  
Siyang Tang ◽  
Changjun Liu ◽  
Hairong Yue ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Acid Sites ◽  
Reduction Of No ◽  
Low Temperature Scr ◽  
Insight Into

A novel Mn–SiO2@TiO2 nano-cup catalyst with synergy of MnO2 and acid sites for efficient low-temperature SCR reaction.

scholarly journals Promotion effect of urchin-like MnOx@PrOx hollow core–shell structure catalysts for the low-temperature selective catalytic reduction of NO with NH3

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13855-13865 ◽  
Author(s):  
Shuyuan Cheng ◽  
Jing Shao ◽  
Bichun Huang ◽  
Jinkun Guan ◽  
Lusha Zhou
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Shell Structure ◽  
Catalytic Reduction ◽  
Core Shell ◽  
Hollow Core ◽  
Promotion Effect ◽  
Templating Method ◽  
Reduction Of No ◽  
Core Shell Structure

A MnOx@PrOx catalyst with a hollow urchin-like core–shell structure was prepared using a sacrificial templating method and was used for the low-temperature selective catalytic reduction of NO with NH3.

Deep insight into the structure–activity relationship of Nb modified SnO2–CeO2 catalysts for low-temperature selective catalytic reduction of NO by NH3

2017 ◽  
Vol 7 (2) ◽  
pp. 502-514 ◽  
Author(s):  
Lijun Yan ◽  
Yangyang Liu ◽  
Kaiwen Zha ◽  
Hongrui Li ◽  
Liyi Shi ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Deep Insight ◽  
Reduction Of No ◽  
Structure Activity ◽  
Relationship Of ◽  
Insight Into

The structure–activity relationship of Nb modified SnO2–CeO2 catalysts was investigated for selective catalytic reduction of NO by NH3.

scholarly journals The promotion effect of manganese on Cu/SAPO for selective catalytic reduction of NOx with NH3

RSC Advances ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 6110-6119 ◽  
Author(s):  
Chengkai Pang ◽  
Yuqun Zhuo ◽  
Qiyu Weng ◽  
Zhenwu Zhu
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Promotion Effect ◽  
Reduction Of No ◽  
Reduction Of Nox

The activity and N2 selectivity of Cu/SAPO and xMn–2Cu/SAPO for low-temperature selective catalytic reduction of NOx with NH3 were investigated.

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
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