Low‐temperature selective catalytic reduction of NO over carbon nanotubes supported MnO 2 fabricated by co‐precipitation method

2015 ◽  
Vol 10 (11) ◽  
pp. 666-669 ◽  
Author(s):  
Xiulian Lu ◽  
Yuying Zheng ◽  
Yanbing Zhang ◽  
Hongfeng Qiu ◽  
Haiqiang Zou
Keyword(s):  
Carbon Nanotubes ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Precipitation Method ◽  
Reduction Of No ◽  
Co Precipitation

Highly dispersed Fe2O3 on carbon nanotubes for low-temperature selective catalytic reduction of NO with NH3

2015 ◽  
Vol 51 (5) ◽  
pp. 956-958 ◽  
Author(s):  
Zhenping Qu ◽  
Lei Miao ◽  
Hui Wang ◽  
Qiang Fu
Keyword(s):  
Carbon Nanotubes ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
No Conversion ◽  
Highly Dispersed

Highly dispersed Fe2O3 nanoparticles supported on CNTs showed excellent NO conversion, selectivity and durability towards SO2/H2O at low temperatures (200–325 °C).

Selective catalytic reduction of NO with NH3 over novel iron–tungsten mixed oxide catalyst in a broad temperature range

2015 ◽  
Vol 5 (9) ◽  
pp. 4556-4564 ◽  
Author(s):  
Xiang Li ◽  
Junhua Li ◽  
Yue Peng ◽  
Tao Zhang ◽  
Shuai Liu ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Mixed Oxide ◽  
Oxide Catalyst ◽  
Catalytic Reduction ◽  
Precipitation Method ◽  
Reduction Of No ◽  
Molar Ratios ◽  
Scr Of No ◽  
Mixed Oxide Catalyst ◽  
Co Precipitation

A series of novel FeW(x) catalysts with different Fe/W molar ratios prepared by the co-precipitation method were investigated in the selective catalytic reduction (SCR) of NOx with NH3.

The Effects of SiO2 and CeO2 Addition on the Performances of MnOx/TiO2 Catalysts

2016 ◽  
Vol 69 (10) ◽  
pp. 1180
Author(s):  
Juhua Luo ◽  
Hongkai Mao ◽  
Xu Wang ◽  
Wei Yao
Keyword(s):  
Low Temperature ◽  
Pore Diameter ◽  
Catalytic Reduction ◽  
Pure Tio2 ◽  
Precipitation Method ◽  
Impregnation Method ◽  
Average Pore ◽  
Reduction Of No ◽  
No Conversion ◽  
Co Precipitation

A TiO2-SiO2 mixed oxide was obtained by a co-precipitation method. MnOx-CeO2/TiO2-SiO2 were prepared by an impregnation method and their activity towards the selective catalytic reduction of NO with NH3 at low temperature were evaluated. Compared with pure TiO2, TiO2-SiO2 exhibited an evidently larger surface area and pore volume, and a smaller average pore diameter with narrow distribution. The NO conversion of the MnOx/TiO2-SiO2 catalyst could be improved by the addition of an appropriate amount of CeO2 in the temperature range of 100–180°C. MnOx-CeO2/TiO2-SiO2 with 10 wt-% CeO2 showed the highest activity with 96 % NO conversion at 180°C.

Effect of Cerium on Manganese Base Catalysts by Co-Precipitation for Low-Temperature SCR of NO with NH3

2014 ◽  
Vol 633 ◽  
pp. 121-124 ◽  
Author(s):  
Liang Jing Zhang ◽  
Su Ping Cui ◽  
Hong Xia Guo ◽  
Xiao Yu Ma ◽  
Xiao Gen Luo
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Precipitation Method ◽  
Base Catalysts ◽  
Nox Conversion ◽  
Scr Of No ◽  
Co Precipitation ◽  
Low Temperature Scr

Catalysts of Mn/TiO2 and Mn-Ce /TiO2 prepared by co-precipitation method for low temperature selective catalytic reduction (SCR) of NO with NH3 were investigated in this study. The experimental results showed that co-precipitation method after improvement, the NO conversion of Mn-Ce/TiO2 catalyst increased sharply. Meanwhile, the addition of cerium has significant effects on the catalytic activity. Characterizations of catalysts were carried out by XRD, BET and H2-TPR. The characterized results indicated that co-precipitation method after improvement, in temperature windows 150 to 300 °C, showed higher NOx conversion.

Modification of MnCo2Ox catalysts by NbOx for low temperature selective catalytic reduction of NO with NH3

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97004-97011 ◽  
Author(s):  
Tengfei Xu ◽  
Can Wang ◽  
Xiaodong Wu ◽  
Baohuai Zhao ◽  
Ze Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Activity ◽  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
Co Precipitation

Among the NbOx modified MnCo2Ox catalysts by co-precipitation, MnCo2Nb0.5Ox presented high activity, N2 selectivity and H2O resistance for NH3-SCR reaction at low temperatures.

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