Single step sol–gel made gold on alumina catalyst for selective reduction of NOx under oxidizing conditions: effect of gold precursor and reaction conditions

2002 ◽  
Vol 232 (1-2) ◽  
pp. 203-217 ◽  
Author(s):  
Erol Seker ◽  
Erdogan Gulari
Keyword(s):  
Sol Gel ◽  
Selective Reduction ◽  
Single Step ◽  
Alumina Catalyst ◽  
Reaction Conditions ◽  
Gold Precursor ◽  
Selective Reduction Of Nox ◽  
Reduction Of Nox

Investigation of the SCR Catalyst Ce-V/TiO2

2009 ◽  
Vol 610-613 ◽  
pp. 274-280
Author(s):  
Fen Wang ◽  
Xiu Feng Ren ◽  
Jian Feng Zhu ◽  
Hai Bo Yang
Keyword(s):  
Reaction Temperature ◽  
Catalytic Reduction ◽  
Sol Gel ◽  
Selective Reduction ◽  
Catalytic Performance ◽  
Scr Catalyst ◽  
Nox Conversion ◽  
Selective Reduction Of Nox ◽  
Reduction Of Nox ◽  
Catalytic Performances

The Ce-V/TiO2 catalysts with the selective catalytic reduction (SCR) were prepared by method of Sol-gel and insuccation. The phase compositions, microstructures and specific surface area of the catalysts were analyzed by XRD, SEM and BET, respectively. The effect of CeO2 and V2O5 loading and reaction temperature on the catalytic performances of the as-prepared catalysts was investigated by using the selective reduction of NOx with NH3. The results showed all the as-prepared Ce-V/TiO2 catalysts were made up of nanometer grains. Compared to conventional TiO2 catalysts, the as-prepared Ce-V/TiO2 catalysts possessed better catalytic performance, higher adsorbability and larger area of contact with reactant, which is due to large quantity surface micropores. The NOx conversion of SCR over 5wt%Ce-10wt%V/TiO2 catalysts reached 96.2% at the reaction temperature of 500 oC.

Investigation and Preparation of the SCR Catalysts Nano-Co/Ce-V-Zr-TiO2

2010 ◽  
Vol 663-665 ◽  
pp. 1097-1102
Author(s):  
Xiu Feng Ren ◽  
Fen Wang ◽  
Yuan Zhou ◽  
Hong En Nian ◽  
Yu Na Pang ◽  
...  
Keyword(s):  
Reaction Temperature ◽  
Catalytic Reduction ◽  
Sol Gel ◽  
Selective Reduction ◽  
Catalytic Performance ◽  
Scr Catalysts ◽  
Selective Reduction Of Nox ◽  
Reduction Of Nox ◽  
Co Precipitation ◽  
Catalytic Performances

The nano-Co/Ce-V-Zr-TiO2 catalysts with the selective catalytic reduction (SCR) were prepared by methods of Sol-gel, impregnation (IM) and co-precipitation (CP). The phase compositions, microstructures and specific surface area of the catalysts were analyzed by BET, XRD and SEM, respectively. The effect of CeO2, CoO, V2O5 and V2O5 loading and reaction temperature on the catalytic performances of the as-prepared catalysts was investigated by using the selective reduction of NOx with NH3. The results showed all the as-prepared Co/Ce-V-Zr-TiO2 catalysts were made up of nanometer grains. Compared to conventional TiO2 catalysts, the as-prepared Co/Ce-V-Zr-TiO2 catalysts possessed better catalytic performance, higher adsorbability and larger area of contact with reactant, which is due to large quantity surface micropores. The NOx conversion of SCR over 8 wt%Co/Ce-V-Zr-TiO2 catalysts reached 98.3% at the reaction temperature of 550 oC. Furthermore, the activity of Co/Ce-V-Zr-TiO2 catalysts were improved by the Co loading, however, further increasing the Co loading lead to decrease the catalysis activity.

scholarly journals Modeling of EPR Parameters for Cu(II): Application to the Selective Reduction of NOx Catalyzed by Cu-Zeolites

2018 ◽  
Vol 61 (9-11) ◽  
pp. 810-832 ◽  
Author(s):  
Estefanía Fernández ◽  
Marta Moreno-González ◽  
Manuel Moliner ◽  
Teresa Blasco ◽  
Mercedes Boronat ◽  
...  
Keyword(s):  
Selective Reduction ◽  
Selective Reduction Of Nox ◽  
Epr Parameters ◽  
Reduction Of Nox

Development of stable and efficient CeVO4 systems for the selective reduction of NOx by ammonia: Structure-activity relationship

2017 ◽  
Vol 218 ◽  
pp. 338-348 ◽  
Author(s):  
Sylvain Gillot ◽  
Grégory Tricot ◽  
Hervé Vezin ◽  
Jean-Philippe Dacquin ◽  
Christophe Dujardin ◽  
...  
Keyword(s):  
Selective Reduction ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Structure Activity ◽  
Selective Reduction Of Nox ◽  
Reduction Of Nox

Mechanism of the Selective Reduction of NOx over Co/MFI: Comparison with Fe/MFI

2001 ◽  
Vol 197 (2) ◽  
pp. 281-291 ◽  
Author(s):  
Xiang Wang ◽  
Hai-Ying Chen ◽  
Wolfgang M.H Sachtler
Keyword(s):  
Selective Reduction ◽  
Selective Reduction Of Nox ◽  
Reduction Of Nox
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