Extremely Active Pd@pSiO(2) Yolk-Shell Nanocatalysts for Suzuki Coupling Reactions of Aryl Halides

Cited 70 time in webofscience Cited 0 time in scopus
  • Hit : 250
  • Download : 0
In the present study, we optimize the yolk-shell nanostructure in a palladium-silica system for the purpose of attaining high activity in Suzuki cross-coupling reactions. Pd@porous SiO2 (Pd@pSiO(2)) yolk-shell nanoparticles, bearing tiny palladium cores and highly porous silica hollow shells, were synthesized by direct silica coating and partial etching of the silica layers. High temperature treatment removed all surfactants around the catalyst surface and generated large pores on the silica shells. The resulting Pd@pSiO(2) yolk-shell catalysts exhibited extremely high initial turnover frequency of 78000 h(-1), as well as excellent reusability of more than 10 times in a standard Suzuki coupling reaction. The catalysts also catalyzed Suzuki reactions with various substrates including bromo- and chlorobenzene very well.
Publisher
AMER CHEMICAL SOC
Issue Date
2011-08
Language
English
Article Type
Article
Keywords

PALLADIUM NANOPARTICLES; CATALYTIC-ACTIVITY; HETEROGENEOUS CATALYST; GOLD NANOPARTICLES; MEDIATED SYNTHESIS; STABLE CATALYSTS; LIGAND-FREE; OXIDATION; CARBON; NANOCOMPOSITES

Citation

JOURNAL OF PHYSICAL CHEMISTRY C, v.115, no.32, pp.15772 - 15777

ISSN
1932-7447
URI
http://hdl.handle.net/10203/98369
Appears in Collection
CH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 70 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0