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Journal of Solid State Electrochemistry

, Volume 10, Issue 6, pp 373–379 | Cite as

Morphology, internal structure and growth mechanism of electrodeposited Ni and Co powders

  • V. D. Jović
  • V. Maksimović
  • M. G. Pavlović
  • K. I. Popov
Original Paper

Abstract

In this paper the morphology (SEM analysis), the internal structure (cross-section analysis) and the growth mechanism of Ni and Co powders electrodeposited from ammoniacal electrolyte are investigated. It is shown that morphology and the internal structure of those powders are quite different. For Ni powder, all particles are of the same morphology, cauliflower-like type. In the case of Co powder, generally two types of particles are detected: (1) dendrite particles and (2) different types of agglomerates, compact, spongy-like and ball-like ones. The growth mechanism for all agglomerates is based on the fact that with the time of growth the disperse (dendrite) agglomerate is branching in different directions and at the tip of each branch spherical diffusion takes over the planar one, providing conditions for the growth of compact deposit. After some time, these branches form compact deposit all over the agglomerate surface and the same agglomerate further grows as a compact one, until it falls off from the electrode surface. Characteristic of all agglomerates is the presence of deep cavities on their surface and the fern-like dendrites on the bottom for most of these cavities.

Keywords

Ni Co Powders Dendrite particles Cauliflower-like particles Different agglomerates Growth mechanism 

Notes

Acknowledgements

This work was supported by the Ministry of Science and Environmental Protection of the Republic of Serbia under the research project “Electrodeposition of Metal Powders at a Constant and Periodically Changing Rate” (1806/2002).

References

  1. 1.
    Calusaru A (1979) Electrodeposition of powders from solutions. Elsevier, New YorkGoogle Scholar
  2. 2.
    Fedorova O (1938) Zh Obsch Khim 8:1711Google Scholar
  3. 3.
    Hardy C, Mantell C (1937) FP No 815500Google Scholar
  4. 4.
    Loshkarev M, Gernostaleva O, Kriukova A (1946) Zh Prikl Khim 19:739Google Scholar
  5. 5.
    Levin A (1947) Collection of works of ural industrial institute (in Russian), p 125; (1946) Zhur Prikl Khim 19:779Google Scholar
  6. 6.
    Hiruma K (1949) J Electrochem Soc Jpn 17:160Google Scholar
  7. 7.
    Drozdov B (1955) Zh Prikl Khim 1:45Google Scholar
  8. 8.
    Nicol A (1946) CR 222:1043Google Scholar
  9. 9.
    Wranglen G (1950) Acta Polytech Electr Eng Ser 2:69Google Scholar
  10. 10.
    Kuroda M, Yto G, Shimizu Y (1953) Rept Sci Research (Japan) 29:429; Kuroda M, Yto G (1953) Japanese Patent No. 5166Google Scholar
  11. 11.
    Mantell C (1941) USA Patent No. 2233103Google Scholar
  12. 12.
    Pavlović MG, Hadžismajlović Dž, Popov KI (1991) Chem Ind (in Serbian) 45:239Google Scholar
  13. 13.
    Mathers, Turner (1932) British Patent No. 403281Google Scholar
  14. 14.
    Mathers (1932) Met Ind (NY) 30:321,396,368Google Scholar
  15. 15.
    Huppomann WJ, Dalal K (1986) Metallographic atlas of powder metallurgy. Werlag Schmid GmbH, pp 21–63Google Scholar
  16. 16.
    Lönnberg B (1994) J Mat Sci 29:3224CrossRefGoogle Scholar
  17. 17.
    Ziegler G (1978) Powder Met 10:70Google Scholar
  18. 18.
    X-ray powder JCPDS diffraction files 5–0727, 4–0850Google Scholar
  19. 19.
    Popov KI, Krstajić NV, Čekerevac MI (1996) In: White RE, Conway BE, Bockris JO’M (eds) Modern aspects of electrochemistry. vol 39, Chap 6. Plenum, New York (a) p 319, (b) p 298Google Scholar
  20. 20.
    Popov KI, Krstić SB, Obradović MČ, Pavlović MG, Pavlović LjJ, Ivanović ER (2004) J Serb Chem Soc 69:43CrossRefGoogle Scholar
  21. 21.
    Murashova IB, Pomosov AV (1989) Electrodeposition of metals in the form of dendrites (in Russian). In: Itogi nauki i tekhniki Seria Elektrokhimiya vol 30. VINITI, Moskva, p 90Google Scholar
  22. 22.
    Popov KI, Krstajić NV (1983) J Appl Electrochem 13:775CrossRefGoogle Scholar
  23. 23.
    Popov KI, Krstajić NV, Simičić KV, Babić NM (1992) J Serb Chem Soc 57:927Google Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • V. D. Jović
    • 1
  • V. Maksimović
    • 2
  • M. G. Pavlović
    • 3
  • K. I. Popov
    • 4
  1. 1.Center for Multidisciplinary StudiesUniversity of BelgradeBelgradeSerbia & Montenegro
  2. 2.Institute of Nuclear Science, “Vinča”BelgradeSerbia & Montenegro
  3. 3.ICTM, Institute of ElectrochemistryBelgradeSerbia & Montenegro
  4. 4.Faculty of Technology and MetallurgyUniversity of BelgradeBelgradeSerbia & Montenegro

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