Core–Shell Pd/Co Nanocrystals

Nelli S. Sobal; Michael Giersig

doi:10.1071/CH04232

RESEARCH ARTICLE

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Core–Shell Pd/Co Nanocrystals

Nelli S. Sobal ^A and Michael Giersig ^A ^B

+ Author Affiliations

- Author Affiliations

^A Center of Advanced European Studies and Research, 53175 Bonn, Germany.

^B Corresponding author. Email: giersig@caesar.de

Australian Journal of Chemistry 58(5) 307-310 https://doi.org/10.1071/CH04232
Submitted: 1 October 2004 Accepted: 14 January 2005 Published: 1 May 2005

Abstract

A method for the preparation of bimetallic Pd/Co nanoparticles with a core–shell structure is presented. The process involves synthesis of a pure Pd seed colloid using thermal decomposition of palladium acetylacetonate, Pd(acac)₂. Reduction of cobalt acetate using a polyalcohol in the presence of the Pd seeds allows the formation of Pd-core/Co-shell nanocrystals. Transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDX), and superconducting quantum interference (SQUID) magnetometry were used to characterize the bimetallic system.

Acknowledgments

The authors thank Prof. Paul Mulvaney from the University of Melbourne for constructive discussion on the chemical synthesis. We also thank Prof. Michael Farle and his co-workers from the University of Duisburg–Essen, for the magnetic characterization.

References

Core–Shell Pd/Co Nanocrystals

Abstract

Acknowledgments

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