Abstract
Codeposition of Ru and Co was studied at room temperature and at 50 °C with various Ru3+ and Co2+ concentrations in the electrolyte. The codeposition of Co and Ru proved to be anomalous since no pure Ru could be obtained in the presence of Co2+ in the electrolyte, but a significant Co incorporation into the deposit was detected at potentials where the deposition of pure Co was not possible. The composition of the deposits varied monotonously with the change of the concentration ratio of Co2+ and Ru3+. The deposition of Ru was much hindered, and the current efficiency was a few percent only when the molar fraction of Co in the deposit was low. Continuous deposits could be obtained only when the molar fraction of Co in the deposit was at least 40 at.%. The deposit morphology was related to the molar fraction of Co in the deposit. The X-ray diffractograms are in conformity with a hexagonal close-packed alloy and indicate the formation of nanocrystalline deposits. Two-pulse plating did not lead to a multilayer but to a Co-rich alloy. Magnetoresistance of the samples decreased with increasing Ru content.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Cavallotti PL, Bestetti M, Franz S (2003) Electrochim Acta 48:3013–3020
Wang F, Hosoiri K, Doi S, Okamoto N, Kuzushima T, Totsuka T, Watanabe T (2004) Electrochem Commun 6:1149–1152
Zana I, Zangari G, Shamsuzzoha M (2005) J Magn Magn Mater 292:266–280
Jeong GH, Lee CH, Jang JH, Park NJ, Suh SJ (2008) J Magn Magn Mater 320:2985–2987
Cortés M, Gómez E, Vallés E (2010) Electrochem Commun 12:132–136
Rožman KŽ, Kovač J, McGuiness PJ, Samardžija Z, Markoli B, Kobe S (2010) Thin Solid Films 518:1751–1755
Huang Q, Bonhote C, Lam J, Romankiw LR (2007) ECS Trans 3:61–69
Yasin HM, Denuault G, Pletcher D (2009) J Electroanal Chem 633:327–332
Safranek WH (1974) The properties of electrodeposited metals and alloys—a handbook, American Elsevier Publishing, New York, Chapter 15, pp. 369–374
Reid FH, Blake JC (1961) Trans Inst Met Finish 38:45–51
Szabó S, Bakos I (1987) J Electroanal Chem 230:233–240
Vuković M, Čukman D (1999) J Electroanal Chem 474:167–173
Juzikis P, Gudavičiūtė L, Matulionis E (1995) Platinum Metals Review 39:68–71
Juzikis P, Gudavičiūtė L, Messmer A, Kittel MU (1997) J Appl Electrochem 27:991–994
Bakonyi I, Tóth-Kádár E, Tóth J, Kiss LF, Pogány L, Cziráki Á, Ulhaq-Bouillet C, Pierron-Bohnes V, Dinia A, Arnold B, Wetzig K (2002) Europhys Lett 58:408–414
Bakonyi I, Tóth-Kádár E, Cziráki Á, Tóth J, Kiss LF, Ulhaq-Bouillet C, Pierron-Bohnes V, Dinia A, Arnold B, Wetzig K, Santiago P, Yacamáne MJ (2002) J Electrochem Soc 149:C469–C473
Parkin SSP (1991) Phys Rev Lett 67:3598–3601
Parkin SSP, More N, Roche KP (1990) Phys Rev Lett 64:2304–2307
Bloemen PH, Kesteren HW, Swagten HJM, de Jone WJM (1994) Phys Rev B 50:13505–13514
Zoll S, Dinia A, Jay JP, Meny C, Pan GZ, Michel A, El Chahal L, Pierron-Bohnes V, Panissod P, Van den Berg HAM (1998) Phys Rev B 57:4842–4848
Massalski TB (ed.) Binary alloy phase diagrams, 2nd edn. plus updates on CD-ROM, ASM International, Materials Park, Ohio, USA, (1996)
Zhu AL, Teo MY, Kulinich SA (2009) Appl Catal A 352:17–26
Péter L, Liu QX, Kerner Z, Bakonyi I (2004) Electrochim Acta 49:1513–1526
Acknowledgments
Financial support of the Hungarian Scientific Research Fund (OTKA) through grants # K-75008 and NN–79846 is acknowledged. The work of M. Jafari Fesharaki in Hungary was supported by a scholarship of the Iranian government.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jafari Fesharaki, M., Nabiyouni, G.R., Dégi, J. et al. Anomalous codeposition of cobalt and ruthenium from chloride–sulfate baths. J Solid State Electrochem 16, 715–722 (2012). https://doi.org/10.1007/s10008-011-1416-6
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10008-011-1416-6