Palladium catalysts supported on sulfated ceria–zirconia for the selective catalytic reduction of NOx by methane: Catalytic performances and nature of active Pd species

2011 ◽  
Vol 176 (1) ◽  
pp. 242-249 ◽  
Author(s):  
B. Azambre ◽  
L. Zenboury ◽  
P. Da Costa ◽  
S. Capela ◽  
S. Carpentier ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Palladium Catalysts ◽  
Catalytic Reduction ◽  
Reduction Of Nox ◽  
Catalytic Performances

The selective catalytic reduction of NOx over a Cu/ZSM-5/SAPO-34 composite catalyst

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104923-104931 ◽  
Author(s):  
Jixing Liu ◽  
Weiyu Song ◽  
Chi Xu ◽  
Jian Liu ◽  
Zhen Zhao ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Mass Fraction ◽  
Catalytic Reduction ◽  
Composite Catalyst ◽  
Composite Catalysts ◽  
Scr Of No ◽  
Reduction Of Nox ◽  
Seed Method ◽  
Catalytic Performances

A series of Cu/ZSM-5/SAPO-34 composite catalysts with varying ZSM-5 mass fraction were synthesized using a pre-seed method, and their catalytic performances were tested for selective catalytic reduction (SCR) of NO with NH3.

scholarly journals A CeO2/ZrO2-TiO2 Catalyst for the Selective Catalytic Reduction of NOx with NH3

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 592 ◽  
Author(s):  
Wenpo Shan ◽  
Yang Geng ◽  
Yan Zhang ◽  
Zhihua Lian ◽  
Hong He
Keyword(s):  
Selective Catalytic Reduction ◽  
Ph Value ◽  
Catalytic Reduction ◽  
Space Velocity ◽  
Catalytic Performance ◽  
Excellent Activity ◽  
Reduction Of Nox ◽  
High Space ◽  
Catalytic Performances ◽  
High Space Velocity

In this study, CeZr0.5TiaOx (with a = 0, 1, 2, 5, 10) catalysts were prepared by a stepwise precipitation approach for the selective catalytic reduction of NOx with NH3. When Ti was added, all of the Ce-Zr-Ti oxide catalysts showed much better catalytic performances than the CeZr0.5Ox. Particularly, the CeZr0.5Ti2Ox catalyst showed excellent activity for broad temperature range under high space velocity condition. Through the control of pH value and precipitation time during preparation, the function of the CeZr0.5Ti2Ox catalyst could be controlled and the structure with highly dispersed CeO2 (with redox functions) on the surface of ZrO2-TiO2 (with acidic functions) could be obtained. Characterizations revealed that the superior catalytic performance of the catalyst is associated with its outstanding redox properties and adsorption/activation functions for the reactants.

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.

scholarly journals A study on the selective catalytic reduction of NOx by ammonia on sulphated iron-based catalysts

RSC Advances ◽  
2020 ◽  
Vol 10 (67) ◽  
pp. 40948-40959
Author(s):  
Caixia Liu ◽  
Huijun Wang ◽  
Yalian Bi ◽  
Ziyin Zhang
Keyword(s):  
Selective Catalytic Reduction ◽  
High Temperatures ◽  
Catalytic Reduction ◽  
Reduction Of Nox ◽  
Iron Based ◽  
Iron Based Catalysts

The roles of Fe3+ and SO42− are different at low and high temperatures due to their interaction. It is the appropriate contents of Fe3+ and SO42− that can result in high NH3-SCR activity at varying temperatures.

CeO2-WO3 catalysts for the selective catalytic reduction of NOx with NH3: effect of the amount of WO3

2021 ◽  
Vol 132 (2) ◽  
pp. 655-669
Author(s):  
Jiebing Li ◽  
Jiawen Luo ◽  
Zhongxian Song ◽  
Haiyan Kang ◽  
Yanli Mao ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of Nox
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