Influence of the crystalline structure of ZrO2 on the metallic properties of Pt in Pt/WO3–ZrO2 catalysts

被引：0

作者：

J.C. Yori

J.M. Parera

机构：

[1] Instituto de Investigaciones en Catálisis y Petroquímica – INCAPE‐UNL‐CONICET,

来源：

Catalysis Letters | 2000年 / 65卷

关键词：

Pt metallic properties; Pt/WO; –ZrO; catalysts;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The influence of the crystalline structure of ZrO2 on the metallic properties of Pt, when supported on WO3–ZrO2, was studied. Pt supported on tetragonal zirconia loses its metallic properties while when supported on monoclinic zirconia it presents good metallic activities. WO2,2- deposited on amorphous Zr(OH)4 before calcination generates an active material for n‐butane isomerization. The larger the fraction of the tetragonal phase of zirconia in this material, the higher the isomerization activity and the lower the metallic activity of Pt.

引用

页码：205 / 208

页数：3

共 27 条

[1]

Arata K.(1990)undefined Adv. Catal. 37 165-undefined

[2]

Larsen G.(1996)undefined Appl. Catal. A 139 201-undefined

[3]

Lotero E.(1995)undefined J. Catal. 153 218-undefined

[4]

Raghavan S.N.(1999)undefined Appl. Catal. A 181 5-undefined

[5]

Parra R.D.(1997)undefined Appl. Catal. A 163 165-undefined

[6]

Querini C.A.(1990)undefined Appl. Catal. 57 127-undefined

[7]

Yori J.C.(1987)undefined J. Catal. 107 114-undefined

[8]

D'Amato M.A.(1994)undefined J. Catal. 150 96-undefined

[9]

Costa G.(undefined)undefined undefined undefined undefined-undefined

[10]

Parera J.M.(undefined)undefined undefined undefined undefined-undefined

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