Formation and Stabilization of Anisotropic Palladium and Platinum Nanoparticles in Aqueous Polymer Solution Using Microwave Irradiation

Angshuman Pal; Sunil Shah; Debjani Chakraborty; Surekha Devi

doi:10.1071/CH07353

RESEARCH ARTICLE

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Formation and Stabilization of Anisotropic Palladium and Platinum Nanoparticles in Aqueous Polymer Solution Using Microwave Irradiation

Angshuman Pal ^A , Sunil Shah ^A , Debjani Chakraborty ^A and Surekha Devi ^A ^B

+ Author Affiliations

- Author Affiliations

^A Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390002, Gujarat, India.

^B Corresponding author. Email: surekha_devi@yahoo.com

Australian Journal of Chemistry 61(11) 833-836 https://doi.org/10.1071/CH07353
Submitted: 10 October 2007 Accepted: 23 September 2008 Published: 5 November 2008

Abstract

Anisotropic palladium and platinum nanoparticles were synthesized by reduction of the corresponding metal ions with hydrazine using polyacrylamide as a stabilizing agent in aqueous medium under microwave irradiation. The formation of particles was confirmed by UV-visible spectroscopy. The size and shape of the particles were determined using transmission electron microscopy. Rapid microwave heating resulted in ‘star-shaped’ palladium nanoparticles, but platinum nanoparticles were observed to be spherical with a distinctly visible 3–4 nm coating of polyacrylamide on their surface, which was not observed for the palladium particles. The Pt nanoparticles were used as a catalyst in the redox reaction.

Acknowledgement

The authors thank GUJCOST (Gandhinagar, Gujarat) for financial support.

References

Formation and Stabilization of Anisotropic Palladium and Platinum Nanoparticles in Aqueous Polymer Solution Using Microwave Irradiation

Abstract

Acknowledgement

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