A Rapid Synthesis of Oriented Palladium Nanoparticles by UV Irradiation

Palladium nanoparticles of average size around 8 nm have been synthesized rapidly by UV irradiation of mixture of palladium chloride and potassium oxalate solutions. A rod-shaped palladium oxalate complex has been observed as an intermediate. In the absence of potassium oxalate, no Pd nanoparticles...

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Bibliographic Details
Published in:Nanoscale research letters 2009-02, Vol.4 (2), p.181-186, Article 181
Main Authors: Navaladian, S, Viswanathan, B, Varadarajan, TK, Viswanath, RP
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Electron diffraction
Irradiation
Materials Science
Molecular Medicine
Nano Express
Nanochemistry
Nanoparticles
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Oxalic acid
Palladium
Palladium chloride
Potassium
Synthesis
Transmission electron microscopy
Ultraviolet radiation
X ray powder diffraction
X-ray diffraction
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Summary:Palladium nanoparticles of average size around 8 nm have been synthesized rapidly by UV irradiation of mixture of palladium chloride and potassium oxalate solutions. A rod-shaped palladium oxalate complex has been observed as an intermediate. In the absence of potassium oxalate, no Pd nanoparticles have been observed. The synthesized Pd nanoparticles have been characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), selective area electron diffraction and energy dispersive analysis by X-rays (EDAX) analyses. XRD analysis indicates the preferential orientation of catalytically active {111} planes in Pd nanoparticles. A plausible mechanism has been proposed for the formation of anisotropic Pd nanoparticles.
ISSN:1556-276X
1931-7573
1556-276X
DOI:10.1007/s11671-008-9223-4