Silicon carbon-supported copper oxide catalysts for the selective catalytic reduction of NOx with NH3 at low temperature

BAI Shu-li; ZHANG Xiao-yu; XUE Yao-jia; LI Huan-ying; JIA Jian-bo

Volume 48 Issue 6

Jun. 2020

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Article Navigation > Journal of Fuel Chemistry and Technology > 2020 > 48(6): 723-727

BAI Shu-li, ZHANG Xiao-yu, XUE Yao-jia, LI Huan-ying, JIA Jian-bo. Silicon carbon-supported copper oxide catalysts for the selective catalytic reduction of NOx with NH3 at low temperature[J]. Journal of Fuel Chemistry and Technology, 2020, 48(6): 723-727.

Citation:

BAI Shu-li, ZHANG Xiao-yu, XUE Yao-jia, LI Huan-ying, JIA Jian-bo. Silicon carbon-supported copper oxide catalysts for the selective catalytic reduction of NO_x with NH₃ at low temperature[J]. Journal of Fuel Chemistry and Technology, 2020, 48(6): 723-727.

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Silicon carbon-supported copper oxide catalysts for the selective catalytic reduction of NO_x with NH₃ at low temperature

School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China

Funds:

National Natural Science Foundation of China 21006065

More Information

Corresponding author: BAI Shu-li, E-mail: wyuchembsl@126.com
Received Date: 2020-03-10
Rev Recd Date: 2020-05-11

Available Online: 2021-01-23

Publish Date: 2020-06-10

Abstract

Abstract

Silicon carbide supported copper oxide (CuO/SiC) catalysts were prepared by wet impregnation method and characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS); their catalytic performance in the selective catalytic reduction of NO_x with NH₃ at low temperature was investigated with a mimic flue gas. The results indicate that the catalytic performance of CuO/SiC in the selective catalytic reduction NO with NH₃ is related to the loading of copper oxide and reaction temperature. The CuO/SiC catalyst with a CuO loading of 5% exhibits high activity at low temperature, where SO₂ shows slightly inhibition upon the NO reduction activity; the NO reduction reaction over CuO/SiC may take place between the adsorbed ammonia and the gaseous or weakly adsorbed NO. Such CuO/SiC catalysts may provide a new choice for the practical removal of NO_x in industry.
- selective catalytic reduction,
- silicon carbide,
- copper oxide,
- ammonia

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References(25)

References

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