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A novel Cerium-Tin composite oxide catalyst with high SO2 tolerance for selective catalytic reduction of NOx with NH3.

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Title: A novel Cerium-Tin composite oxide catalyst with high SO2 tolerance for selective catalytic reduction of NOx with NH3.
Authors: Liu, Caixia1,2,3 (AUTHOR), Han, Jingfeng1,3 (AUTHOR), Bi, Yalian1,3 (AUTHOR), Wang, Jian1,3 (AUTHOR), Guo, Mingyu1,2 (AUTHOR), Liu, Qingling1,2,3 (AUTHOR) liuql@tju.edu.cn
Source: Catalysis Today. Sep2021, Vol. 376, p65-72. 8p.
Subjects: Mixed oxide catalysts, Catalytic reduction, Selective catalytic oxidation, Fourier transform infrared spectroscopy, Catalysts
Abstract: CeO 2 has high oxygen storage and release capacity, but the surface acidity is relatively weak. However, SnO 2 with plentiful acidity can act as acid sites. So, we develop a novel CeO 2 -SnO 2 composite oxide bifunctional catalyst with high SO 2 resistance. [Display omitted] • A novel CeO 2 -SnO 2 composite oxide catalyst with high SO 2 resistance is developed. • The effects of preparation methods on the physicochemical properties of CeO 2 -SnO 2 catalyst are explored. • The catalyst prepared by coprecipitation method leads to increased surface area, acid sites and proper redox property. The selective catalytic reduction for reducing NOx with NH 3 (NH 3 -SCR) has been widespread used in denitration. Considering the shortcomings of vanadium-based catalysts, a series of novel CeO 2 -SnO 2 composite oxide catalysts with good SO 2 tolerance were developed. The effects of preparation methods on the catalytic performance had been systematically studied by characterization methods, such as XRD, SEM, N 2 adsorption–desorption, H 2 -TPR, NH 3 -TPD, XPS and in situ Fourier transform infrared spectroscopy (FTIR). Characterization results concluded that the catalytic performance was closely related to the different physicochemical property resulting from preparation methods. CeO 2 -SnO 2 composite catalyst was prepared by coprecipitation method (CeSn-CP) that displayed high NH 3 -SCR activity and good SO 2 tolerance. The coprecipitation method resulted in the high dispersion of SnO 2 species and the formation of binary solid solution. Binary solid solution was beneficial to play the synergetic effect between CeO 2 and SnO 2 , which had improved reduction ability and acidity, and thus an apparent promotion of activity was presented. [ABSTRACT FROM AUTHOR]
Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: A novel Cerium-Tin composite oxide catalyst with high SO2 tolerance for selective catalytic reduction of NOx with NH3.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Caixia%22">Liu, Caixia</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Jingfeng%22">Han, Jingfeng</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bi%2C+Yalian%22">Bi, Yalian</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jian%22">Wang, Jian</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Mingyu%22">Guo, Mingyu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Qingling%22">Liu, Qingling</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> liuql@tju.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Catalysis+Today%22">Catalysis Today</searchLink>. Sep2021, Vol. 376, p65-72. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Mixed+oxide+catalysts%22">Mixed oxide catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+reduction%22">Catalytic reduction</searchLink><br /><searchLink fieldCode="DE" term="%22Selective+catalytic+oxidation%22">Selective catalytic oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: CeO 2 has high oxygen storage and release capacity, but the surface acidity is relatively weak. However, SnO 2 with plentiful acidity can act as acid sites. So, we develop a novel CeO 2 -SnO 2 composite oxide bifunctional catalyst with high SO 2 resistance. [Display omitted] • A novel CeO 2 -SnO 2 composite oxide catalyst with high SO 2 resistance is developed. • The effects of preparation methods on the physicochemical properties of CeO 2 -SnO 2 catalyst are explored. • The catalyst prepared by coprecipitation method leads to increased surface area, acid sites and proper redox property. The selective catalytic reduction for reducing NOx with NH 3 (NH 3 -SCR) has been widespread used in denitration. Considering the shortcomings of vanadium-based catalysts, a series of novel CeO 2 -SnO 2 composite oxide catalysts with good SO 2 tolerance were developed. The effects of preparation methods on the catalytic performance had been systematically studied by characterization methods, such as XRD, SEM, N 2 adsorption–desorption, H 2 -TPR, NH 3 -TPD, XPS and in situ Fourier transform infrared spectroscopy (FTIR). Characterization results concluded that the catalytic performance was closely related to the different physicochemical property resulting from preparation methods. CeO 2 -SnO 2 composite catalyst was prepared by coprecipitation method (CeSn-CP) that displayed high NH 3 -SCR activity and good SO 2 tolerance. The coprecipitation method resulted in the high dispersion of SnO 2 species and the formation of binary solid solution. Binary solid solution was beneficial to play the synergetic effect between CeO 2 and SnO 2 , which had improved reduction ability and acidity, and thus an apparent promotion of activity was presented. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.cattod.2020.07.085
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 65
    Subjects:
      – SubjectFull: Mixed oxide catalysts
        Type: general
      – SubjectFull: Catalytic reduction
        Type: general
      – SubjectFull: Selective catalytic oxidation
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      – SubjectFull: Fourier transform infrared spectroscopy
        Type: general
      – SubjectFull: Catalysts
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      – TitleFull: A novel Cerium-Tin composite oxide catalyst with high SO2 tolerance for selective catalytic reduction of NOx with NH3.
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            NameFull: Liu, Caixia
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            NameFull: Han, Jingfeng
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            NameFull: Bi, Yalian
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            NameFull: Wang, Jian
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              M: 09
              Text: Sep2021
              Type: published
              Y: 2021
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              Value: 376
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