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论文类型：期刊论文

发表时间：2012-10-05

发表刊物：CATALYSIS COMMUNICATIONS

收录刊物：SCIE、EI、Scopus

卷号：27

页面范围：78-82

ISSN号：1566-7367

关键字：Rhodium; Nanoparticles; Hydroformylation; Poly(ethylene glycol); Thermoregulated PEG biphasic system; Olefins

摘要：Poly(ethylene glycol) (PEG)-stabilized Rh nanoparticles prepared by simple hydrogen reduction of RhCl3 center dot 3H(2)O in the presence of PEG(4000) (PEG with an average molecular weight of 4000 g/mol) were shown to be efficient and recyclable catalysts for hydroformylation of olefins in thermoregulated PEG biphasic system, which allows for not only an efficient homogeneous catalytic reaction, but also an easy biphasic separation and reuse of catalyst. Under the optimized conditions, the conversion of various olefins and the yield of corresponding aldehydes were >= 98%. The Rh nanoparticle catalyst could be separated from products by simple phase separation and recycled for twenty times without evident loss of activity. (C) 2012 Elsevier B.V. All rights reserved.