Operando FTIR study of reaction pathways of selective catalytic reduction of NOx with decane in the presence of water on iron-exchanged MFI-type zeolite

2005 ◽  
Vol 234 (1) ◽  
pp. 191-198 ◽  
Author(s):  
R BROSIUS ◽  
P BAZIN ◽  
F THIBAULTSTARZYK ◽  
J MARTENS
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reaction Pathways ◽  
Ftir Study ◽  
Type Zeolite ◽  
Reduction Of Nox

Computational Insights into the Mechanism of the Selective Catalytic Reduction of NOx: Fe- Versus Cu-Doped Zeolite Catalysts

2019 ◽  
Author(s):  
Julian Rudolph ◽  
Christoph R. Jacob
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Reaction Pathways ◽  
Half Cycle ◽  
Computational Results ◽  
Comprehensive Picture ◽  
Cu Catalysts ◽  
Reduction Of Nox

<div> <div> <div> <p>We computationally investigate the mechanism of the reduction half-cycle of the selective catalytic reduction (SCR) of nitrogen oxides with ammonia. We compare both Fe- and Cu-doped zeolite catalysts and aim at exploring all accessible reaction pathways. From our calculations, a comprehensive picture emerges that unifies sev- eral previous mechanistic proposals. We find that both for Fe and for Cu catalysts, different reaction pathways are feasible, but some of the possible reaction pathways differ in these two cases. Our computational results provide a basis for the inter- pretation of in situ spectroscopic investigations that can possibly distinguish the different mechanistic pathways. </p> </div> </div> </div>

Computational Insights into the Mechanism of the Selective Catalytic Reduction of NOx: Fe- Versus Cu-Doped Zeolite Catalysts

2019 ◽  
Author(s):  
Julian Rudolph ◽  
Christoph R. Jacob
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Reaction Pathways ◽  
Half Cycle ◽  
Computational Results ◽  
Comprehensive Picture ◽  
Cu Catalysts ◽  
Reduction Of Nox

<div> <div> <div> <p>We computationally investigate the mechanism of the reduction half-cycle of the selective catalytic reduction (SCR) of nitrogen oxides with ammonia. We compare both Fe- and Cu-doped zeolite catalysts and aim at exploring all accessible reaction pathways. From our calculations, a comprehensive picture emerges that unifies sev- eral previous mechanistic proposals. We find that both for Fe and for Cu catalysts, different reaction pathways are feasible, but some of the possible reaction pathways differ in these two cases. Our computational results provide a basis for the inter- pretation of in situ spectroscopic investigations that can possibly distinguish the different mechanistic pathways. </p> </div> </div> </div>

scholarly journals DRIFTS study of a Ce–W mixed oxide catalyst for the selective catalytic reduction of NOx with NH3

2015 ◽  
Vol 5 (4) ◽  
pp. 2290-2299 ◽  
Author(s):  
Kuo Liu ◽  
Fudong Liu ◽  
Lijuan Xie ◽  
Wenpo Shan ◽  
Hong He
Keyword(s):  
Selective Catalytic Reduction ◽  
Mixed Oxide ◽  
Oxide Catalyst ◽  
Catalytic Reduction ◽  
Reaction Pathways ◽  
Mixed Oxide Catalyst ◽  
Fast Scr ◽  
Reduction Of Nox

The mechanism of standard and fast SCR on CeWOx was studied comprehensively, and the possible reaction pathways were proposed.

scholarly journals Ultrafast synthesis of AFX-Type zeolite with enhanced activity in the selective catalytic reduction of NOx and hydrothermal stability

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16790-16796 ◽  
Author(s):  
Anand Chokkalingam ◽  
Watcharop Chaikittisilp ◽  
Kenta Iyoki ◽  
Sye Hoe Keoh ◽  
Yutaka Yanaba ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Hydrothermal Stability ◽  
Enhanced Activity ◽  
Type Zeolite ◽  
Reduction Of Nox

SSZ-16 (AFX-type) zeolite prepared in 2 h, so far the fastest, shows enhanced hydrothermal-stability and activity in selective-catalytic-reduction of NOx.

Computational Insights into the Mechanism of the Selective Catalytic Reduction of NOx: Fe- Versus Cu-Doped Zeolite Catalysts

2019 ◽  
Author(s):  
Julian Rudolph ◽  
Christoph R. Jacob
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Reaction Pathways ◽  
Half Cycle ◽  
Computational Results ◽  
Comprehensive Picture ◽  
Cu Catalysts ◽  
Reduction Of Nox

<div> <div> <div> <p>We computationally investigate the mechanism of the reduction half-cycle of the selective catalytic reduction (SCR) of nitrogen oxides with ammonia. We compare both Fe- and Cu-doped zeolite catalysts and aim at exploring all accessible reaction pathways. From our calculations, a comprehensive picture emerges that unifies sev- eral previous mechanistic proposals. We find that both for Fe and for Cu catalysts, different reaction pathways are feasible, but some of the possible reaction pathways differ in these two cases. Our computational results provide a basis for the inter- pretation of in situ spectroscopic investigations that can possibly distinguish the different mechanistic pathways. </p> </div> </div> </div>

Highly dispersed MnOx–FeOx supported by silicalite-1 for the selective catalytic reduction of NOx with NH3 at low temperatures

2020 ◽  
Vol 10 (16) ◽  
pp. 5525-5534 ◽  
Author(s):  
Jialiang Gu ◽  
Bingjun Zhu ◽  
Rudi Duan ◽  
Yan Chen ◽  
Shaoxin Wang ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Highly Dispersed ◽  
Reduction Of Nox

MnOx–FeOx-Loaded silicalite-1 catalysts exhibit high NOx conversion at low temperatures.

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