Journal of Applied Electrochemistry

, Volume 38, Issue 3, pp 395–402 | Cite as

Sonoelectrochemical (20 kHz) production of Co65Fe35 alloy nanoparticles from Aotani solutions

  • M. Dabalà
  • B. G. Pollet
  • V. Zin
  • E. Campadello
  • T. J. Mason
Original Paper


This paper describes the production of alloy nanoparticles of Co:Fe ratio 65:35 from Aotani solutions in the presence of high power ultrasound (20 kHz). The production of this new type of alloy nanoparticles was performed potentiostatically and galvanostatically at (298 ± 1) K using a newly designed experimental set-up i.e. a ‘sonoelectrode’ producing short applied current pulses triggered and followed immediately by ultrasonic pulses. It was shown that cathode efficiencies decreased with increasing current densities and high nanoparticle yields were obtained at low current densities. Morphological and structural studies of the produced nanoparticles were performed by TEM, SEM, XRD, and SAED, and showed that the strongly aggregated Co65Fe35 alloy nanoparticles were predominantly formed, with prevalent body-centered cubic bcc crystalline structure; no redissolution of the nanoaggregates was observed and no separate Fe and Co metallic nanoparticles were produced sonoelectrochemically. The experimental value of the lattice parameter for bcc Co–Fe alloy was 2.85 Å and was in excellent agreement with literature values.


Sonochemistry Electrochemistry Nanoparticles Power ultrasound 



The authors thank the European Community Sixth Framework Program through a STREP grant to the SELECTNANO Consortium, Contract No. 516922.03/25/2005.


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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • M. Dabalà
    • 1
  • B. G. Pollet
    • 2
  • V. Zin
    • 1
  • E. Campadello
    • 1
  • T. J. Mason
    • 3
  1. 1.DIMEG—University of PaduaPadovaItaly
  2. 2.Fuel Cells Group, Chemical Engineering DepartmentThe University of BirminghamBirminghamUK
  3. 3.Faculty of Health and Life SciencesCoventry UniversityCoventryUK

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