FTIR STUDIES ON THE CO, CO2 AND H-2 COADSORPTION OVER RU-RUOX/TIO2 CATALYST

被引：19

作者：

GUPTA, NM ^{[1
]}

KAMBLE, VS ^{[1
]}

IYER, RM ^{[1
]}

THAMPI, KR ^{[1
]}

GRATZEL, M ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,INST PHYS CHEM,CH-1015 LAUSANNE,SWITZERLAND

来源：

CATALYSIS LETTERS | 1993年 / 21卷 / 3-4期

关键词：

INFRARED SPECTROSCOPY; RUTHENIUM/TIO2; CATALYST; IR SPECTRA OF ADSORBED CO AND CO2;

D O I：

10.1007/BF00769476

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：

FTIR spectra of a Ru-RuO(x)/TiO2 catalyst obtained on co-adsorption of CO, CO2 and H-2 in the temperature range of 300-500 K were found to be the sum total of corresponding spectra observed during methanation of individual oxides. The two oxides compete for metal sites and at each temperature they reacted simultaneously to form distinct transient Ru(CO)n type species even though the nature, the stability and the reactivity of these species were different in the two cases. The monocarbonyl species formed during adsorption/reaction of CO alone or Of CO + H-2 were bonded more strongly than those formed during CO2 + H-2 reaction.

引用

页码：245 / 255

页数：11

共 5 条

[1] THE TRANSIENT SPECIES FORMED OVER RU-RUOX/TIO2 CATALYST IN THE CO AND CO+H2 INTERACTION - FTIR SPECTROSCOPIC STUDY [J].

GUPTA, NM ;

KAMBLE, VS ;

IYER, RM ;

THAMPI, KR ;

GRATZEL, M .

JOURNAL OF CATALYSIS, 1992, 137 (02) :473-486

[2]

GUPTA NM, IN PRESS J CATAL

[3]

Ruterana P., 1989, MRS ONLINE P LIBR, V139, P327, DOI [10.1557/PROC-139-327, DOI 10.1557/PROC-139-327]

[4] CHARACTERIZATION OF A RU/TIO2 CATALYST FOR SELECTIVE METHANATION AT ROOM-TEMPERATURE AND ATMOSPHERIC-PRESSURE [J].

THAMPI, KR ;

LUCARELLI, L ;

KIWI, J .

LANGMUIR, 1991, 7 (11) :2642-2648

[5]

THAMPI KR, 1988, 9TH P INT C CAT, V2, P83

← 1 →