USE OF CO AS PROBE MOLECULE FOR CHARACTERIZATION OF MIXED RU-NI SULFIDE PHASES SUPPORTED OVER ALUMINA

被引：18

作者：

DELOSREYES, JA ^{[1
]}

VRINAT, M ^{[1
]}

BREYSSE, M ^{[1
]}

MAUGE, F ^{[1
]}

LAVALLEY, JC ^{[1
]}

机构：

[1] ISM RA,CATALYSE & SPECTROCHIM LAB,CNRS,UA 414,F-14050 CAEN,FRANCE

来源：

CATALYSIS LETTERS | 1992年 / 13卷 / 03期

关键词：

NICKEL; RUTHENIUM; SULFIDE; CO ADSORPTION; HYDROGENATION;

D O I：

10.1007/BF00770993

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：

Infrared spectroscopy was used to characterize mixed ruthenium-nickel sulphides prepared by step-wise impregnation over alumina and further sulphidation. The hydrogenation of biphenyl was compared over samples containing different amounts of nickel and ruthenium and a large increase was observed for a catalyst with an atomic Ni/(Ni + Ru) ratio near 0.4. Infrared spectra of adsorbed CO indicate that the increase in catalytic activity is ascribed to the presence of a very large number of Ru-Ni sites.

引用

页码：213 / 219

页数：7

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