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: Article

12 Citas (Scopus)

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.

Idioma originalEnglish
Páginas (desde-hasta)82-85
Número de páginas4
PublicaciónCatalysis Communications
Volumen39
DOI
EstadoPublished - 7 jun 2013

Huella dactilar

Impregnation
Catalysts
Crystalline materials
Atoms

ASJC Scopus subject areas

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

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.",
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author = "Gonzalo Aguila and Ana Valenzuela and Sichem Guerrero and Paulo Araya",
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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, 07.06.2013, p. 82-85.

Resultado de la investigación: Article

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 - 2013/6/7

Y1 - 2013/6/7

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

UR - http://www.scopus.com/inward/record.url?scp=84878437390&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2013.05.007

DO - 10.1016/j.catcom.2013.05.007

M3 - Article

AN - SCOPUS:84878437390

VL - 39

SP - 82

EP - 85

JO - Catalysis Communications

JF - Catalysis Communications

SN - 1566-7367

ER -