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题名: Preparation of Ru metal nanoparticles in mesoporous materials: influence of sulfur on the hydrogenating activity
作者: Tian, P;  Blanchard, J;  Fajerwerg, K;  Breysse, M;  Vrinat, M;  Liu, ZM
关键词: hydrogenation ;  mesoporous materials ;  ruthenium ;  tetralin ;  benzene ;  acidity
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2003-06-19
DOI: 10.1016/S1387-1811(03)00377-9
卷: 60, 期:1-3, 页:197-206
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Hydrogenating catalysts were prepared by inserting Ru into the pores of mesoporous Al-MCM-41 materials by selective adsorption of [Ru(NH3)(6)](3+). Ru/support catalysts were obtained after reduction with H-2. The activities of these catalysts in hydrogenation reactions were compared to those of Ru/HY and Ru/SiO2. The catalytic properties in the absence of sulfur were tested in benzene hydrogenation, and the intrinsic activities of all the catalysts (either supported on mesoporous materials or on zeolites) were identical. It was concluded from this result that the dispersion of the Ru metallic phase was similar for all these catalysts. These samples were tested in the tetralin hydrogenation in pure H-2 and in the presence of H2S (330 ppm of H2S in H-2). They were found to be much less active than the zeolite-supported catalysts in the presence of H2S. It is proposed that the lower activity of the catalysts supported on mesoporous materials is either due to their milder acidity, as evidenced by NH3-TPD, cumene cracking and pyridine desorption experiments, or to the localization of the Ru nanoparticles on alumina islands. (C) 2003 Elsevier Science Inc. All rights reserved.
关键词[WOS]: RUTHENIUM SULFIDE CLUSTERS ;  AROMATIC-HYDROCARBONS ;  MOLECULAR-SIEVES ;  CATALYSTS ;  ZEOLITES ;  IMPROVEMENT ;  ADSORPTION ;  BENZENE ;  ACIDITY ;  MCM-41
语种: 英语
WOS记录号: WOS:000183748700018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138314
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Univ Paris 06, Lab React Surface, UMR CNRS, F-75252 Paris 05, France
2.Inst Rech Catalyse, CNRS, UPR, F-69626 Villeurbanne, France
3.Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Tian, P,Blanchard, J,Fajerwerg, K,et al. Preparation of Ru metal nanoparticles in mesoporous materials: influence of sulfur on the hydrogenating activity[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2003,60(1-3):197-206.
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