scholarly journals Synthesis of oxygen functionalized carbon nanotubes and their application for selective catalytic reduction of NOx with NH3

RSC Advances ◽  
2020 ◽  
Vol 10 (28) ◽  
pp. 16700-16708 ◽  
Author(s):  
Bora Ye ◽  
Sun-I Kim ◽  
Minwoo Lee ◽  
Mohammadamin Ezazi ◽  
Hong-Dae Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Selective Catalytic Reduction ◽  
Acid Treatment ◽  
Catalytic Reduction ◽  
Active Materials ◽  
Functionalized Carbon Nanotubes ◽  
Dispersion Properties ◽  
Reduction Of Nox

Oxygen functionalized carbon nanotubes synthesized by surface acid treatment were used to improve the dispersion properties of active materials for catalysis.

Low-Temperature Selective Catalytic Reduction of NO with NH3 Over Mn-Fe Mixed Metal Oxides on the Nitric Vapor Functionalized Carbon Nanotubes Prepared by a Polyol Process

NANO ◽  
2017 ◽  
Vol 12 (04) ◽  
pp. 1750048
Author(s):  
Xin Lv ◽  
Liheng Zhang ◽  
Sheng Zhan ◽  
Zhen Li ◽  
Yi Zeng
Keyword(s):  
Carbon Nanotubes ◽  
Low Temperature ◽  
Metal Oxides ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Polyol Process ◽  
Mixed Metal Oxides ◽  
Functionalized Carbon Nanotubes ◽  
X Ray ◽  
Scr Of No

Highly dispersed Mn-Fe mixed metal oxides were supported on the nitric vapor functionalized carbon nanotubes (CNTs) by the polyol process for the low-temperature selective catalytic reduction (SCR) of NO with NH3. X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), H2 temperature-programmed reduction (H2-TPR) and Fourier transform infrared (FT-IR) spectroscopy have been used to elucidate the structure and surface properties of the obtained catalysts. It was found that the Mn-Fe/VF-CNTs catalysts synthesized by the polyol process exhibited higher activity and more extensive operating-temperature window, compared to the catalysts prepared by the impregnation method. On the basis of the catalyst characterization, the better dispersion of metal oxides on the CNTs surface, the more chemisorbed oxygen species, the higher Mn[Formula: see text]/Mn and O[Formula: see text]/O[Formula: see text]O[Formula: see text] ratios played key roles in the excellent catalytic performance of the catalyst in the low-temperature SCR of NO to N2 with NH3.

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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