CO HYDROGENATION ON SUPPORTED COBALT CATALYSTS STUDIED BY INSITU FTIR-SPECTROSCOPY

被引：14

作者：

FREDRIKSEN, GR ^{[1
]}

BLEKKAN, EA ^{[1
]}

SCHANKE, D ^{[1
]}

HOLMEN, A ^{[1
]}

机构：

[1] SINTEF, N-7034 TRONDHEIM, NORWAY

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1993年 / 97卷 / 03期

关键词：

ADSORPTION; CATALYSIS; SPECTROSCOPY; INFRARED; SURFACES;

D O I：

10.1002/bbpc.19930970308

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：

CO hydrogenation on silica and alumina supported Co catalysts has been studied using in situ IR spectroscopy at 473-523 K, 6 bar and H-2/CO=2. Bands corresponding to linearly adsorbed CO appeared at 2072 cm-1 on 4.7% Co/SiO2 and 2062 cm-1 on 4.6% Co/gamma-Al2O3, while a pair of bands at 1996 and 1952 cm-1 is observed on the alumina supported Co catalyst. Infrared bands in the 3100-2700 cm-1 and 1700-1200 cm-1 regions are attributed to adsorbed hydrocarbons, surface formate and carbonate species. The variation of the band intensities with time during CO hydrogenation and subsequent treatment in He or H-2, indicates that these structures represent reaction products, apparently adsorbed on the support.

引用

页码：308 / 312

页数：5

共 21 条

[1]

[Anonymous], [No title captured]

[2] TEMPERATURE-PROGRAMMED REDUCTION OF COO/AL2O3 CATALYSTS [J].