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Size-controlled synthesis of Pd nanoparticles from β-diketonato complexes of palladium

Pei-Feng Ho and Kai-Ming Chi

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Palladium nanoparticles with low polydispersity were fabricated by thermally-induced reduction of Pd(fod)2 in o-xylene in the presence of tetraalkylammonium salts as the surfactants. The particle size, ranging from 6.2 to 18.5 nm, can be controlled by variation of the surfactant, and the concentrations of precursor and surfactant. Self-assembly of the Pd nanoparticles in closest packing was observed in this study.


PACS

81.16.Hc Catalytic methods

82.70.Uv Surfactants, micellar solutions, vesicles, lamellae, amphiphilic systems, (hydrophilic and hydrophobic interactions)

81.16.Dn Self-assembly

Subjects

Soft matter, liquids and polymers

Nanoscale science and low-D systems

Chemical physics and physical chemistry

Dates

Issue 8 (August 2004)

Received 12 February 2004, in final form 4 May 2004

Published 21 June 2004



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