Issue 42, 2015

Gold nanoparticles decorated on a graphene-periodic mesoporous silica sandwich nanocomposite as a highly efficient and recyclable heterogeneous catalyst for catalytic applications

Abstract

Ultra-small Au nanoparticles (Au NPs) were immobilized on HS-functionalized sandwich-like periodic mesoporous silica (PMS) coated graphene (G) to form the novel nanocomposite catalyst Au NPs@HS-G-PMS. The synthesized Au NPs@HS-G-PMS nanocatalyst exhibited excellent catalytic activity in three kinds of organic reactions. The reduction of 4-nitrophenol by sodium borohydride, the Suzuki–Miyaura cross coupling reaction of aryl halides with phenyl boronic acid and the three component coupling reaction of aldehyde, alkyne, and secondary amine (A3-coupling) in water were all successfully accomplished. Most importantly, the catalyst could be used repetitively more than six times without significant deactivation.

Graphical abstract: Gold nanoparticles decorated on a graphene-periodic mesoporous silica sandwich nanocomposite as a highly efficient and recyclable heterogeneous catalyst for catalytic applications

Article information

Article type
Paper
Submitted
02 Jan 2015
Accepted
20 Mar 2015
First published
20 Mar 2015

RSC Adv., 2015,5, 33423-33431

Author version available

Gold nanoparticles decorated on a graphene-periodic mesoporous silica sandwich nanocomposite as a highly efficient and recyclable heterogeneous catalyst for catalytic applications

S. K. Movahed, M. Shariatipour and M. Dabiri, RSC Adv., 2015, 5, 33423 DOI: 10.1039/C5RA00062A

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