Transition metal nanoparticles stabilized by ammonium salts of hyperbranched polystyrene: effect of metals on catalysis of the biphasic hydrogenation of alkenes and arenes
2015; Elsevier BV; Volume: 71; Issue: 37 Linguagem: Inglês
10.1016/j.tet.2015.04.081
ISSN1464-5416
AutoresLei Gao, Keisuke Kojima, Hideo Nagashima,
Tópico(s)Gold and Silver Nanoparticles Synthesis and Applications
ResumoHyperbranched polystyrene bearing ammonium salts (HPS-NR3+Cl−) behaves as an excellent stabilizer of ruthenium, rhodium, iridium, palladium, and platinum nanoparticles from 1 to 3 nm in size uniformly dispersed in the polymer matrix. The catalytic performance of the resulting metal-polymer composites, M@HPS-NR3+Cl−, is dependent on the metal. This dependence was investigated by assessing the hydrogenation of alkenes and arenes. The utility of M@HPS-NR3+Cl− as reusable catalysts in aqueous/organic biphasic systems was demonstrated by examining the catalysis of the hydrogenation of aromatic compounds containing various functional groups by Ru@HPS-NR3+Cl−.
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