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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/115/05-06/0499-0508

    • Keywords

       

      Metallic nanoparticles; electro explosion of wires; atomic force microscopy

    • Abstract

       

      We describe a novel process for the production of nanoparticles of Cu, Ag, Fe and Al which involves exploding their respective wires, triggered by large current densities in the wires. The particles are characterised by X-ray diffraction (XRD) and atomic force microscopy (AFM). Particle sizes in the range 20–100nm were obtained employing this technique. The XRD results reveal that the nanoparticles continue to retain lattice periodicity at reduced particle sizes, displaying in some cases evidence of lattice strain and preferential orientation. In the case of Fe, Mossbauer spectroscopy reveals loss of ferromagnetism as a result of the reduced size of the particles.

    • Author Affiliations

       

      P Sen1 Joyee Ghosh1 Alqudami Abdullah1 Prashant Kumar1 Vandana1

      1. School of Physical Sciences, Jawaharlal Nehru University, New Delhi - 110 067, India

    • Dates

       
      Published
      12 October 2003

  • Journal of Chemical Sciences | News

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