FT-IR study of Au/Fe2O3 catalysts for CO oxidation at low temperature

被引：176

作者：

Minico, S ^{[1
]}

Scire, S ^{[1
]}

Crisafulli, C ^{[1
]}

Visco, AM ^{[1
]}

Galvagno, S ^{[1
]}

机构：

[1] UNIV CATANIA,DIPARTIMENTO SCI CHIM,I-95125 CATANIA,ITALY

来源：

CATALYSIS LETTERS | 1997年 / 47卷 / 3-4期

关键词：

CO oxidation; gold; FT-IR spectroscopy;

D O I：

10.1023/A:1019081727173

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：

Coprecipitated Au/Fe2O3 catalysts used for low-temperature catalytic oxidation of carbon monoxide have been studied by FT-IR spectroscopy of adsorbed CO. The FT-IR results have shown that after preparation and exposure to a CO/O-2 mixture gold is present on the surface mainly as Au1+ and Au-0 species. It has been found that in the CO oxidation Au1+ is more active and less stable than Au-0.

引用

页码：273 / 276

页数：4

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