WGS activity of a novel Cu-ZrO2 catalyst prepared by a reflux method. Comparison with a conventional impregnation method

Gonzalo Aguila, Ana Valenzuela, Sichem Guerrero, Paulo Araya

Resultado de la investigación: Research - revisión exhaustivaArticle

  • 5 Citas

Resumen

The activity in the WGS reaction of Cu/ZrO2 catalysts prepared by a method of refluxing in an aqueous NH4OH solution is studied. It is shown that at 3% Cu load the methods of impregnation over monoclinic or tetragonal ZrO2 do not produce active catalysts for the WGS reaction. However, the method of refluxing generates highly active catalysts with Cu loads of 3% (w/w) or higher. The activity of the catalysts prepared by refluxing is associated with the formation of small Cu clusters, which would allow the regrouping of the H atoms to generate molecular H2 in the presence of the crystalline tetragonal ZrO2.

IdiomaEnglish
Páginas82-85
Número de páginas4
PublicaciónCatalysis Communications
Volumen39
DOI
EstadoPublished - 2013

Huella dactilar

Impregnation
Catalysts
Crystalline materials
Atoms

Keywords

    ASJC Scopus subject areas

    • Catalysis
    • Process Chemistry and Technology
    • Chemistry(all)

    Citar esto

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    title = "WGS activity of a novel Cu-ZrO2 catalyst prepared by a reflux method. Comparison with a conventional impregnation method",
    abstract = "The activity in the WGS reaction of Cu/ZrO2 catalysts prepared by a method of refluxing in an aqueous NH4OH solution is studied. It is shown that at 3% Cu load the methods of impregnation over monoclinic or tetragonal ZrO2 do not produce active catalysts for the WGS reaction. However, the method of refluxing generates highly active catalysts with Cu loads of 3% (w/w) or higher. The activity of the catalysts prepared by refluxing is associated with the formation of small Cu clusters, which would allow the regrouping of the H atoms to generate molecular H2 in the presence of the crystalline tetragonal ZrO2.",
    keywords = "Copper, WGS, Zirconia",
    author = "Gonzalo Aguila and Ana Valenzuela and Sichem Guerrero and Paulo Araya",
    year = "2013",
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    WGS activity of a novel Cu-ZrO2 catalyst prepared by a reflux method. Comparison with a conventional impregnation method. / Aguila, Gonzalo; Valenzuela, Ana; Guerrero, Sichem; Araya, Paulo.

    En: Catalysis Communications, Vol. 39, 2013, p. 82-85.

    Resultado de la investigación: Research - revisión exhaustivaArticle

    TY - JOUR

    T1 - WGS activity of a novel Cu-ZrO2 catalyst prepared by a reflux method. Comparison with a conventional impregnation method

    AU - Aguila,Gonzalo

    AU - Valenzuela,Ana

    AU - Guerrero,Sichem

    AU - Araya,Paulo

    PY - 2013

    Y1 - 2013

    N2 - The activity in the WGS reaction of Cu/ZrO2 catalysts prepared by a method of refluxing in an aqueous NH4OH solution is studied. It is shown that at 3% Cu load the methods of impregnation over monoclinic or tetragonal ZrO2 do not produce active catalysts for the WGS reaction. However, the method of refluxing generates highly active catalysts with Cu loads of 3% (w/w) or higher. The activity of the catalysts prepared by refluxing is associated with the formation of small Cu clusters, which would allow the regrouping of the H atoms to generate molecular H2 in the presence of the crystalline tetragonal ZrO2.

    AB - The activity in the WGS reaction of Cu/ZrO2 catalysts prepared by a method of refluxing in an aqueous NH4OH solution is studied. It is shown that at 3% Cu load the methods of impregnation over monoclinic or tetragonal ZrO2 do not produce active catalysts for the WGS reaction. However, the method of refluxing generates highly active catalysts with Cu loads of 3% (w/w) or higher. The activity of the catalysts prepared by refluxing is associated with the formation of small Cu clusters, which would allow the regrouping of the H atoms to generate molecular H2 in the presence of the crystalline tetragonal ZrO2.

    KW - Copper

    KW - WGS

    KW - Zirconia

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    DO - 10.1016/j.catcom.2013.05.007

    M3 - Article

    VL - 39

    SP - 82

    EP - 85

    JO - Catalysis Communications

    T2 - Catalysis Communications

    JF - Catalysis Communications

    SN - 1566-7367

    ER -