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题名: Ultrastable 3V-PPh3 polymers supported single Rh sites for fixed-bed hydroformylation of olefins
作者: Jiang, Miao1, 4;  Yan, Li1;  Ding, Yunjie1, 2;  Sun, Qi3;  Liu, Jia1, 4;  Zhu, Hejun1;  Lin, Ronghe1;  Xiao, Fengshou3;  Jiang, Zheng5;  Liu, Jingyue1, 2, 6
关键词: Stability ;  Hydroformylation ;  Heterogenized catalysts ;  Porous organic ligands ;  Rhodium
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2015-08-01
DOI: 10.1016/j.molcata.2015.05.008
卷: 404, 页:211-217
收录类别: SCI
文章类型: Editorial Material
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The heterogenization of homogeneous catalysts is of critical importance for both fundamental research and practical applications. The key obstacle to industrial applications of heterogenized homogeneous catalysts is the long-term stability of the immobilized molecular complexes. We unambiguously demonstrate in this report that the vinyl-functionalized PPh3 polymers supported single Rh sites (Rh/POL-PPh3) catalyst provided not only excellent catalytic activity but also ultrahigh stability for fixed-bed olefins hydroformylation, which is one of the most important industrial homogeneous catalytic processes for the synthesis of aldehydes and alcohols. HAADF-STEM and EXAFS results indicated that the Rh atoms were present in single Rh sites which were strongly coordinated with the exposed phosphorous atoms of the POL-PPh3 support. The Rh/POL-PPh3 catalyst provided high activity and selectivity because it maintained the catalytic functionalities similar to the homogeneous HRh(CO)(PPh3)(3) complex, as demonstrated both by P-31 MAS NMR and in situ FT-IR experiments. Thus a reaction mechanism, similar to that over the homogeneous HRh(CO)(PPh3)(3) complex, was proposed for olefin hydroformylation over the novel Rh/POL-PPh3 catalyst. (C) 2015 Elsevier B.V. All rights reserved.
关键词[WOS]: HIGHLY SELECTIVE HYDROFORMYLATION ;  POROUS ORGANIC POLYMERS ;  HETEROGENEOUS CATALYSTS ;  RHODIUM CATALYSTS ;  LIGAND ;  COMPLEX ;  SILICA ;  STABILITY ;  PROPENE ;  ALKENES
语种: 英语
WOS记录号: WOS:000356756400024
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146345
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 Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
6.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

Recommended Citation:
Jiang, Miao,Yan, Li,Ding, Yunjie,et al. Ultrastable 3V-PPh3 polymers supported single Rh sites for fixed-bed hydroformylation of olefins[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2015,404:211-217.
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