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题名: Structure, Activity, and Stability of Triphenyl Phosphine-Modified Rh/SBA-15 Catalyst for Hydroformylation of Propene: A High-Resolution Solid-State NMR Study
作者: Lan, Xijie1;  Zhang, Weiping1;  Yan, Li1;  Ding, Yunjie1;  Han, Xiuwen1;  Lin, Liwu1;  Bao, Xinhe1
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2009-04-23
DOI: 10.1021/jp810432p
卷: 113, 期:16, 页:6589-6595
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: A ligand (triphenyl phosphine, PPh(3))-modified heterogeneous PPh(3)-Rh(CO)/SBA-15 catalyst and supported Wilkinson complex HRh(CO)(PPh(3))(3)/SBA-15 catalyst were prepared and examined in the hydroformylation of propene. Heterogeneous PPh(3)-Rh(CO)/SBA-15 catalyst showed much higher activity and stability in this reaction. Multimuclear (1)H, (29)Si, (31)P, and (17)O MAS NMR and two-dimensional (17)O MQ MAS NMR together with XRD and N(2) adsorption were employed to study the local structures of these two catalysts. Quantitative (1)H and (29)Si MAS NMR and qualitative one- and two-dimensional (17)O MAS and MQ MAS NMR indicate that in the presence of CO the silanols on the surface of SBA-15 can react with rhodium carbonyls to form the Si-O-Rh bonds at the interface between the catalyst and the support. IT MAS NMR spectra demonstrate a similar Wilkinson complex structure is produced on the heterogeneous PPh(3)-Ph(CO)/SBA-15 catalyst. The formation of Si-O-Rh bonds at the interface may immobilize the Rh complex during the long reaction. These may be correlated to the higher performances of heterogeneous PPh(3)-Rh(CO)/SBA-15 catalyst in propene hydroformylation.
关键词[WOS]: ANGLE-SPINNING NMR ;  GAS-PHASE HYDROFORMYLATION ;  O-17 MULTIPLE-QUANTUM ;  BRONSTED ACID SITES ;  HETEROGENEOUS CATALYSTS ;  MAS NMR ;  RHODIUM COMPLEXES ;  OXYGEN SITES ;  SPECTROSCOPY ;  ZEOLITES
语种: 英语
WOS记录号: WOS:000265383300037
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141370
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Lan, Xijie,Zhang, Weiping,Yan, Li,et al. Structure, Activity, and Stability of Triphenyl Phosphine-Modified Rh/SBA-15 Catalyst for Hydroformylation of Propene: A High-Resolution Solid-State NMR Study[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(16):6589-6595.
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