AN INSITU FT-IR STUDY OF CO HYDROGENATION OVER CERIUM OXIDE

被引：23

作者：

LI, C

DOMEN, K

MARUYA, K

ONISHI, T

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,4259 NAGATSUTA,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

[2] CHINESE ACAD SCI,DALIAN INST CHEM PHYS,NATL LAB CATALYSIS,DALIAN 116023,PEOPLES R CHINA

[3] TOKYO POLYTECH COLL,KODAIRA,TOKYO 187,JAPAN

来源：

JOURNAL OF CATALYSIS | 1993年 / 141卷 / 02期

关键词：

D O I：

10.1006/jcat.1993.1162

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 CO hydrogenation over cerium oxide was studied by using a closed circulating reaction system and in situ Fourier transform infrared spectroscopy (FT-IR) at 300-673 K. The major products of the CO-H2 reaction over cerium oxide were found to be olefins (C=2-C=4), CH4, CO2, and H2O. IR bands due to surface oxygen-containing species such as formate, dioxymethylene, methoxy, and formyl were always detected during the CO-H2 reaction at 300-573 K over cerium oxide. No direct relationship between the surface oxygen-containing species and the production of hydrocarbons were found. The mechanism of CO hydrogenation on cerium oxide involving the surface redox was discussed. © 1993 Academic Press, Inc.

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页码：540 / 547

页数：8

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