Ga-promoted tungstated zirconia catalyst for n-butane isomerization

被引：18

作者：

Chen, XR

Chen, CL ^{[1
]}

Xu, NP

Han, S

Mou, CY

机构：

[1] Nanjing Technol Univ, Coll Chem & Chem Engn, Nanjing 210009, Peoples R China

[2] Natl Taiwan Univ, Dept Chem, Taipei, Taiwan

[3] Natl Taiwan Univ, Ctr Condensed Matter, Taipei, Taiwan

来源：

CATALYSIS LETTERS | 2003年 / 85卷 / 3-4期

关键词：

tungstated zirconia; gallium; n-butane isomerization;

D O I：

10.1023/A:1022137612328

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ga-promoted tungstated zirconia (GWZ) was prepared by a slurry impregnation method. The textural properties as well as the acidities of the Ga-promoted catalysts were characterized by X-ray powder diffraction (XRD), N-2 adsorption, NH3 temperature-programmed desorption (NH3 TPD), microcalorimetry and H-2 temperature-programmed reduction (H-2 TPR). The catalytic behavior of GWZ for n-butane isomerization was studied in the presence of hydrogen. In comparison to tungstated zirconia (WZ), the catalytic activity of the Ga-promoted catalyst was greatly improved. The reason proposed for the higher activity of the Ga-promoted catalysts was that Ga enhances the oxidizing ability of the catalysts.

引用

页码：177 / 182

页数：6

共 21 条

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