scholarly journals Catalytic Activity and Surface Characteristics of WO3-doped MnOx-TiO2 Catalysts for Low-temperature Selective Catalytic Reduction of NOx with NH3

2016 ◽  
Vol 54 (10) ◽  
pp. 787-792
Author(s):  
Hyun Park ◽  
Byeongkil Shin ◽  
Heesoo Lee
Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1423
Author(s):  
Marwa Saad ◽  
Agnieszka Szymaszek ◽  
Anna Białas ◽  
Bogdan Samojeden ◽  
Monika Motak

The goal of the study was to modify activated carbon (AC) with nitrogen groups and ceria and to test the obtained materials in low temperature selective catalytic reduction of nitrogen oxides. For that purpose, the starting AC was oxidized with HNO3 of various concentrations, modified with urea and doped with 0.5 wt.% of Ce. It was observed that the increased concentration of acid influenced the catalytic activity, since textural and surface chemistry of activated carbon was changed. The most active sample was that modified with 14 M HNO3 and it reached 96% of NO conversion at 300 °C. Additionally, the addition of Ce improved the catalytic performance of modified AC, and NO was reduced according to oxidation–reduction mechanism, characteristic for supported metal oxides. Nevertheless, the samples promoted with Ce emitted significantly higher amount of CO2 comparing to the non-promoted ones.


2020 ◽  
Vol 44 (3) ◽  
pp. 817-831 ◽  
Author(s):  
Junqiang Xu ◽  
Yahua Qin ◽  
Honglin Wang ◽  
Fang Guo ◽  
Jiaqing Xie

This paper highlights the design strategies of the copper-based zeolite catalysts with excellent catalytic activity at low temperature for HC-SCR.


RSC Advances ◽  
2018 ◽  
Vol 8 (73) ◽  
pp. 42017-42024 ◽  
Author(s):  
Zhicheng Han ◽  
Qingbo Yu ◽  
Zhijia Xue ◽  
Kaijie Liu ◽  
Qin Qin

Trace amount of Sm-doped Mn-based Zr–Fe polymeric pillared interlayered montmorillonite promotes low temperature catalytic activity in excess oxygen.


2018 ◽  
Vol 33 (21) ◽  
pp. 3559-3569 ◽  
Author(s):  
Xiaoyan Huang ◽  
Aijuan Xie ◽  
Jiayi Wu ◽  
Linjing Xu ◽  
Shiping Luo ◽  
...  

Abstract


2017 ◽  
Vol 41 (19) ◽  
pp. 11299-11307 ◽  
Author(s):  
Rong Liu ◽  
Yifan Xu ◽  
Fei Ye ◽  
Feng Jia ◽  
Rui Xu

Mn–Ce based catalysts supported on Ti-bearing blast furnace slag (industrial solid waste) and the doping of transition metals were studied.


RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 26226-26242 ◽  
Author(s):  
Shengen Zhang ◽  
Bolin Zhang ◽  
Bo Liu ◽  
Shuailing Sun

The reactions over Mn-containing selective catalytic reduction (SCR) catalysts.


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