Effects of transition metal promoters on the thermal stability of sulfated zirconia

被引：3

作者：

Ohtsuka, H ^{[1
]}

机构：

[1] Osaka Gas Co Ltd, Dept Res & Dev, Konohana Ku, Osaka 5540051, Japan

来源：

CATALYSIS LETTERS | 2003年 / 90卷 / 3-4期

关键词：

sulfated zirconia; Fe-promoted sulfated zirconia; monoclinic; tetragonal; thermal stability;

D O I：

10.1023/B:CATL.0000004120.10840.76

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：

The effects of transition metal promoters on the thermal stability of sulfated zirconia (SZ) were studied by XRD and Raman spectroscopy. After calcination at 750 degreesC, the proportion of the monoclinic phase in SZ and 2.7 wt% Fe-SZ were 58 and 13%, respectively. Ni showed a smaller effect and Co showed a negative effect for the stabilization of the tetragonal phase. The results were compared with those of nonsulfated Fe-loaded zirconia, and it was suggested that Fe forms a solid solution with sulfated zirconia.

引用

页码：213 / 219

页数：7

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