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Studies on the interaction between ruthenium and cobalt in supported catalysts in favor of hydroformylation
Huang, L; Xu, Y
关键词Silica Ruthenium Cobalt Interaction Hydroformylation
刊名CATALYSIS LETTERS
2000
69期:3-4页:145-151
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]TEMPERATURE-PROGRAMMED REDUCTION ; HOMOGENEOUS MULTIMETALLIC CATALYSTS ; CLUSTER-DERIVED CATALYSTS ; FISCHER-TROPSCH SYNTHESIS ; CO HYDROGENATION ; RHODIUM CATALYSTS ; VAPOR-PHASE ; OLEFINS ; CO/SIO2 ; SURFACE
英文摘要The interaction between ruthenium and cobalt atoms in SiO2-supported catalysts prepared from various precursors by H-2 treatment at 350 degrees C has been studied by ethylene hydroformylation, temperature-programmed reduction (TPR) technique and IR spectroscopy. Incorporation of cobalt with ruthenium gives a catalyst with remarkably enhanced hydroformylation activity with respect to those of monometallic catalysts, irrespective of the ruthenium and cobalt precursors used. The synergistic effect of ruthenium and cobalt on the catalysis is consistent with TPR and IR results. TPR analysis shows regularly a promoted reduction of cobalt due to the "hydrogen spillover" effect, which indicates that ruthenium and cobalt atoms are in intimate contact in the catalysts. CO adsorption IR study demonstrates a strong decrease of CO chemisorption on Ru in the presence of cobalt, proposing that ruthenium and cobalt atoms interact on the SiO2 surface to form Ru-Co bimetallic particles. The results suggest that the catalysts thus obtained contain Ru-Co bimetallic particles, at least atoms of the two metals in intimate contact. However, in situ surface IR spectra of ethylene hydroformylation exhibit little modification by the presence of cobalt on Ru/SiO2.
语种英语
WOS记录号WOS:000089945300005
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138719
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Huang, L,Xu, Y. Studies on the interaction between ruthenium and cobalt in supported catalysts in favor of hydroformylation[J]. CATALYSIS LETTERS,2000,69(3-4):145-151.
APA Huang, L,&Xu, Y.(2000).Studies on the interaction between ruthenium and cobalt in supported catalysts in favor of hydroformylation.CATALYSIS LETTERS,69(3-4),145-151.
MLA Huang, L,et al."Studies on the interaction between ruthenium and cobalt in supported catalysts in favor of hydroformylation".CATALYSIS LETTERS 69.3-4(2000):145-151.
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