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.
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References
Calusaru A (1979) Electrodeposition of powders from solutions. Elsevier, New York
Fedorova O (1938) Zh Obsch Khim 8:1711
Hardy C, Mantell C (1937) FP No 815500
Loshkarev M, Gernostaleva O, Kriukova A (1946) Zh Prikl Khim 19:739
Levin A (1947) Collection of works of ural industrial institute (in Russian), p 125; (1946) Zhur Prikl Khim 19:779
Hiruma K (1949) J Electrochem Soc Jpn 17:160
Drozdov B (1955) Zh Prikl Khim 1:45
Nicol A (1946) CR 222:1043
Wranglen G (1950) Acta Polytech Electr Eng Ser 2:69
Kuroda M, Yto G, Shimizu Y (1953) Rept Sci Research (Japan) 29:429; Kuroda M, Yto G (1953) Japanese Patent No. 5166
Mantell C (1941) USA Patent No. 2233103
Pavlović MG, Hadžismajlović Dž, Popov KI (1991) Chem Ind (in Serbian) 45:239
Mathers, Turner (1932) British Patent No. 403281
Mathers (1932) Met Ind (NY) 30:321,396,368
Huppomann WJ, Dalal K (1986) Metallographic atlas of powder metallurgy. Werlag Schmid GmbH, pp 21–63
Lönnberg B (1994) J Mat Sci 29:3224
Ziegler G (1978) Powder Met 10:70
X-ray powder JCPDS diffraction files 5–0727, 4–0850
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 298
Popov KI, Krstić SB, Obradović MČ, Pavlović MG, Pavlović LjJ, Ivanović ER (2004) J Serb Chem Soc 69:43
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 90
Popov KI, Krstajić NV (1983) J Appl Electrochem 13:775
Popov KI, Krstajić NV, Simičić KV, Babić NM (1992) J Serb Chem Soc 57:927
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).
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Jović, V.D., Maksimović, V., Pavlović, M.G. et al. Morphology, internal structure and growth mechanism of electrodeposited Ni and Co powders. J Solid State Electrochem 10, 373–379 (2006). https://doi.org/10.1007/s10008-005-0687-1
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DOI: https://doi.org/10.1007/s10008-005-0687-1