QQ客服 官方微博 反馈留言

	Aqueous phosphine-Rh complexes supported on non-porous fumed-silica nanoparticles for higher olefin hydroformylation
	Li, ZH ; Peng, QR ; Yuan, YZ ; Yuan YZ(袁友珠)
	2002-09-17
关键词	non-porous fumed silicas supported aqueous-phase Rh catalyst SAPC hydroformylation 1-hexene P-31 NMR
英文摘要	Non-porous fumed-silica nanoparticles were used as supports for the first time to immobilize water-soluble complex HRh(CO)(P(M-C6H4SO3Na)(3) (1) [P(M-C6H4SO3Na)(3), i.e. trisodium salt of tri-(m-sulfophenyl)-phosphine, TPPTS] to obtain supported aqueous-phase catalysts (SAPC) (fumed-SiO2-SAPC) for hydroformylation of 1-hexene. The experimental results proved that the structure of support and the support hydration were the determining factors contributing to the hydroformylation performance. The fumed-SiO2-SAPC where the water-soluble rhodium complexes were well dispersed onto the external surface of the silica nanoparticles presented a higher hydroformylation performance over a relatively wider range of support hydration as compared to the SAPC with conventional porous granular-SiO2 support (porous SiO2-SAPC). A positive effect on the reaction performance was observed from the particle size and surface area of the fumed-silica nanoparticles. The hydroformylation performance with fumed-SiO2-SAPC was promoted by an addition of basic alkali metal salts such as Na2CO3, K2CO3, and NaH2PO4, which depressed the oxidation of ligand TPPTS to OTPPTS [OTPPTS, i.e. trisodium salt of tri-(m-sulfophenyl)-phosphine oxide, OP(M-C6H4SO3Na)(3)] as evidenced by P-31 NMR observation. (C) 2002 Elsevier Science B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://dx.doi.org/10.1016/S0926-860X(02)00377-0]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Li, ZH,Peng, QR,Yuan, YZ,et al. Aqueous phosphine-Rh complexes supported on non-porous fumed-silica nanoparticles for higher olefin hydroformylation[J],2002.
APA	Li, ZH,Peng, QR,Yuan, YZ,&袁友珠.(2002).Aqueous phosphine-Rh complexes supported on non-porous fumed-silica nanoparticles for higher olefin hydroformylation..
MLA	Li, ZH,et al."Aqueous phosphine-Rh complexes supported on non-porous fumed-silica nanoparticles for higher olefin hydroformylation".(2002).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。