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Your search keyword '"Kou, Yuan"' showing total 18 results
Start Over Author "Kou, Yuan" Publisher wiley-blackwell
18 results on '"Kou, Yuan"'

1. Development of Palladium Surface-Enriched Heteronuclear Au-Pd Nanoparticle Dehalogenation Catalysts in an Ionic Liquid.

Author

Yuan, Xiao, Sun, GENg, Asakura, Hiroyuki, Tanaka, Tsunehiro, ChEN, Xi, Yuan, Yuan, LaurENczy, Gabor, Kou, Yuan, Dyson, Paul J., and Yan, Ning

Abstract

Heteronuclear Au-Pd nanoparticles were prepared and immobilized in the functionalized ionic liquid [C2OHmim][NTf2]. 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. [ABSTRACT FROM AUTHOR]

Published
2013
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10. Development of Palladium Surface-Enriched Heteronuclear Au-Pd Nanoparticle Dehalogenation Catalysts in an Ionic Liquid

Author

Yuan, Xiao, Sun, Geng, Asakura, Hiroyuki, Tanaka, Tsunehiro, Chen, Xi, Yuan, Yuan, Laurenczy, Gabor, Kou, Yuan, Dyson, Paul J., and Yan, Ning

Subjects
ionic liquids, nanoparticles, dehalogenation, gold, palladium
Abstract

Heteronuclear Au–Pd nanoparticles were prepared and immobilized in the functionalized ionic liquid [C2OHmim][NTf2]. 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.

11. Cover Picture: Development of Palladium Surface-Enriched Heteronuclear Au-Pd Nanoparticle Dehalogenation Catalysts in an Ionic Liquid (Chem. Eur. J. 4/2013).

Author

Yuan, Xiao, Sun, GENg, Asakura, Hiroyuki, Tanaka, Tsunehiro, ChEN, Xi, Yuan, Yuan, LaurENczy, Gabor, Kou, Yuan, Dyson, Paul J., and Yan, Ning

Abstract

Bimetallic Au–Pd nanoparticles were prepared in the functionalized ionic liquid [C2OHmim][NTf2] by the thermal decomposition of Pd(OAc)2 and Au(OAc)3. The Au atoms are mostly located in the NP core, leaving the Pd atoms ENriched at the surface. Moreover, the Pd atoms are electropositive, which leads to high activity in catalytic dehalogENation reactions. The activity of the heteronuclear nanoparticles may be attributed to charge transfer from Pd to Au and consequENtly to more efficiENt reductive elimination. For more details, see the Full Paper by N. Yan et   al. on page   1227   ff. [ABSTRACT FROM AUTHOR]

Published
2013
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