Improvement of the Activity of γ-Fe2O3 for the Selective Catalytic Reduction of NO with NH3 at High Temperatures: NO Reduction versus NH3 Oxidization

2013 ◽  
Vol 52 (16) ◽  
pp. 5601-5610 ◽  
Author(s):  
Shijian Yang ◽  
Caixia Liu ◽  
Huazhen Chang ◽  
Lei Ma ◽  
Zan Qu ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
High Temperatures ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No

Mechanistic insight into the influence of O2 on N2O formation in the selective catalytic reduction of NO with NH3 over Pd/CeO2 catalyst

2021 ◽  
Author(s):  
Liping Sheng ◽  
Songda Li ◽  
Zhaoxia Ma ◽  
Fei Wang ◽  
Hu He ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Temperature Dependent ◽  
N2o Formation ◽  
Reduction Of No ◽  
Mechanistic Insight ◽  
Insight Into

O2 greatly affected the pathway for NO reduction over the Pd/CeO2 catalyst and resulted in a temperature-dependent NH3-SCR performance and formation of N2O.

scholarly journals Insights into the promotion role of phosphorus doping on carbon as a metal-free catalyst for low-temperature selective catalytic reduction of NO with NH3

RSC Advances ◽  
2020 ◽  
Vol 10 (22) ◽  
pp. 12908-12919
Author(s):  
Weifeng Li ◽  
Shuangling Jin ◽  
Rui Zhang ◽  
Yabin Wei ◽  
Jiangcan Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Carbon Aerogels ◽  
Phosphorus Doping ◽  
Reduction Of No ◽  
Metal Free

P species can effectively enhance the catalytic activity of carbon aerogels for NO reduction at low temperature.

Synergetic Effects between Al2O3 and HZSM-5 for NO Reduction by CH4

2011 ◽  
Vol 214 ◽  
pp. 364-368
Author(s):  
Li Li Ren ◽  
Xiao Mei Pan
Keyword(s):  
Catalytic Activity ◽  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Synergetic Effect ◽  
Separate Component ◽  
Reduction Of No ◽  
Synergetic Effects

Three different kinds of Al2O3 have been added to HZSM-5 for improving its activity towards selective catalytic reduction of NO with CH4 in the presence of excess of oxygen. Higher conversions of NO have been observed for all of the three mixed catalysts, the conversion of which were also found to be higher than that of each separate component of the catalysts. It was concluded that there exists a synergetic effect between Al2O3 and HZSM-5. The addition of Al2O3 can improve the catalytic activity of HZSM-5 by inhibiting the decomposing of NO2 to NO and accelerating the activation of methane. Adsorbed NO2 is then reduced by the activated methane or the intermediates formed from activated methane to N2 over the Brønsted site of zeolite.

Theoretical investigation of selective catalytic reduction of NO on MIL-100-Fe

2018 ◽  
Vol 20 (4) ◽  
pp. 2211-2219 ◽  
Author(s):  
Minhua Zhang ◽  
Wenyi Wang ◽  
Yifei Chen
Keyword(s):  
Selective Catalytic Reduction ◽  
Theoretical Investigation ◽  
Reaction Mechanisms ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No

Understanding reaction mechanisms for NO reduction on MIL-101-Fe.

scholarly journals The influence of support composition on the activity of Cu:Ce catalysts for selective catalytic reduction of NO by CO in the presence of excess oxygen

2020 ◽  
Vol 44 (3) ◽  
pp. 709-718 ◽  
Author(s):  
Zahra Gholami ◽  
Guohua Luo ◽  
Fatemeh Gholami
Keyword(s):  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Excess Oxygen ◽  
Reduction Of No ◽  
No Reduction By Co ◽  
Excellent Catalytic Performance

Excellent catalytic performance for NO reduction by CO in the presence of 5% O2 over Cu1:Ce3/Al2O3.

Suppression of N2O formation by H2O and SO2 in the selective catalytic reduction of NO with NH3 over a Mn/Ti–Si catalyst

2019 ◽  
Vol 9 (17) ◽  
pp. 4759-4770 ◽  
Author(s):  
Bolin Zhang ◽  
Michael Liebau ◽  
Wladimir Suprun ◽  
Bo Liu ◽  
Shengen Zhang ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Lewis Acid ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Acid Sites ◽  
Lewis Acid Sites ◽  
N2o Formation ◽  
Brønsted Acid Sites ◽  
Reduction Of No ◽  
Suppression Effects

Proposed mechanism of NO reduction and N2O formation as well as H2O/SO2 suppression effects with participation of (a) Lewis acid sites and (b) Brønsted acid sites over a Mn/Ti–Si catalyst.

Selective catalytic reduction of NO with NH3 over MnO2/PDOPA@CNT catalysts prepared via poly(dopamine) functionalization

2018 ◽  
Vol 42 (14) ◽  
pp. 11273-11275 ◽  
Author(s):  
Yanbing Zhang ◽  
Mingjie Ding ◽  
Chengjian Song ◽  
Yingjie Lv ◽  
Haipeng Zhao
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
First Time

MnO2/PDOPA@CNT catalysts were for the first time prepared via poly(dopamine) functionalization and applied in low-temperature NO reduction with NH3.

The mechanism of the effect of H2O on the low temperature selective catalytic reduction of NO with NH3 over Mn–Fe spinel

2015 ◽  
Vol 5 (4) ◽  
pp. 2132-2140 ◽  
Author(s):  
Shangchao Xiong ◽  
Yong Liao ◽  
Xin Xiao ◽  
Hao Dang ◽  
Shijian Yang
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No

H2O effect on NO reduction over Mn–Fe spinel was related to the competition adsorption and the decrease in oxidation ability.

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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