title: Development of palladium surface-enriched heteronuclear Au-Pd nanoparticle dehalogenation catalysts in an ionic liquid.
abstract: Heteronuclear Au-Pd nanoparticles were prepared and immobilized in the functionalized ionic liquid [C(2)OHmim][NTf(2)]. The structural and electronic properties of the nanoparticles were characterized by a range of techniques and the surface of the nanoparticles was found to be enriched in Pd. Moreover, the extent of Pd enrichment is easily controlled by varying the ratio of Au and Pd salts used in the synthesis. The heteronuclear nanoparticles were found to be effective catalysts in dehalogenation reactions with no activity observed for the pure Au nanoparticles and only limited activity for the pure Pd nanoparticles. The activity of the heteronuclear nanoparticles may be attributed to charge transfer from Pd to Au and consequently to more efficient reductive elimination.
authors.affiliation: PKU Green Chemistry Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, PR China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Yuan
authors.forename: Geng
authors.initials: G
authors.lastname: Sun
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Asakura
authors.forename: Tsunehiro
authors.initials: T
authors.lastname: Tanaka
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yuan
authors.forename: Gabor
authors.initials: G
authors.lastname: Laurenczy
authors.forename: Yuan
authors.initials: Y
authors.lastname: Kou
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Dyson
authors.forename: Ning
authors.initials: N
authors.lastname: Yan