Recoverable rhodium nanoparticles: Synthesis, characterization and catalytic performance in hydrogenation reactions

被引：180

作者：

Jacinto, Marcos J. ^{[1
,2
]}

Kiyohara, Pedro K. ^{[3
]}

Masunaga, Sueli H. ^{[3
]}

Jardim, Renato F. ^{[3
]}

Rossi, Liane M. ^{[1
,2
]}

机构：

[1] Univ Sao Paulo, Inst Quim, BR-05508000 Sao Paulo, SP, Brazil

[2] CEPEMA USP, Cubatao, SP, Brazil

[3] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, SP, Brazil

来源：

APPLIED CATALYSIS A-GENERAL | 2008年 / 338卷 / 1-2期

基金：

巴西圣保罗研究基金会;

关键词：

rhodium nanoparticle; catalyst recovery; benzene hydrogenation;

D O I：

10.1016/j.apcata.2007.12.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We here report the first magnetically recoverable Rh(0) nanoparticle-supported catalyst with extraordinary recovery and recycling properties. Magnetic separation has been suggested as a very promising technique to improve recovery of metal-based catalysts in liquid-phase batch reactions. The separation method is significantly simple, as it does not require filtration, decantation, centrifugation, or any other separation technique thereby, overcoming traditional time- and solvent-consuming procedures. Our new magnetically separable catalytic system, comprised of Rh nanoparticles immobilized on silica-coated magnetite nanoparticles, is highly active and could be reused for up to 20 times for hydrogenation of cyclohexene (180,000 mol/mol(Rh)) and benzene (11,550 mol/mol(Rh) under mild conditions. (c) 2007 Elsevier B. V. All fights reserved.

引用

页码：52 / 57

页数：6

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