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Characterization of CeO2–WO3/TiO2 Catalysts Prepared by Adding Glass Fibre for Selective Catalytic Reduction of NOx with NH3

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Abstract

A series of glass fibre doped Ce–W/TiO2 catalysts were investigated for the selective catalytic reduction of NOx by NH3. The adhesion and mechanical strength of the CeO2–WO3/TiO2 catalyst was greatly enhanced by the addition of 6% glass fibre. However, the glass fiber contains a small amount of alkali metals, which occupied the active site on the surface of the CeO2–WO3/TiO2 catalysts, thus the catalytic performance of catalyst was inhibited by the addition of glass fibre. Furthermore, BET, XRD, XPS, TPR and TPD methods revealed that the addition of glass fiber can inhibit the formation of catalyst pore structure and reduce the content of Ce3+, adsorbed oxygen and the Brönsted and Lewis acid sites on the catalyst surface, thereby affecting the redox abilities, nitrogen oxides and ammonia adsorption capacity of catalysts.

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Acknowledgements

The work described above was supported by the Major State Basic Research Development Program of China (973 Program) (No. 2012CBA01205) and National Natural Science Foundation of China (No. 51274060).

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Authors and Affiliations

  1. School of Metallurgy, Northeastern University, No. 3-11 Wenhua Road, Shenyang, 110819, China

    Ming Cai, Xue Bian, Feng Xie, Wenyuan Wu & Peng Cen

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  1. Ming Cai
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  2. Xue Bian
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  3. Feng Xie
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  5. Peng Cen
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Correspondence to Xue Bian or Feng Xie.

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Cai, M., Bian, X., Xie, F. et al. Characterization of CeO2–WO3/TiO2 Catalysts Prepared by Adding Glass Fibre for Selective Catalytic Reduction of NOx with NH3. Catal Lett 152, 2801–2811 (2022). https://doi.org/10.1007/s10562-021-03847-7

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