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Electrolytic preparation of nanosized Cu/Ni–Cu multilayered coatings

Andrea Morovská Turoňová, Marek Capik, Renáta Oriňáková, and Miroslav Gál

Institute of Chemistry, Faculty of Science, P. J. Šafárik University, 040 01 Košice, Slovakia

 

E-mail: andrea.turonova@upjs.sk

Abstract: The electrolytic deposition of nanosized Cu/Ni-Cu multilayer coatings on a paraffin-impregnated graphite substrate was performed from an electrolyte consisting of sulphate salts of the above metals and a complex-forming agent, sodium citrate. The multilayer Cu/Ni-Cu coatings were prepared using the potentiostatic method, in which the potential was alternately pulsed between the reduction potentials of the components. Suitable deposition potentials were selected from the polarisation curves. The presence of the thin films was confirmed by atomic absorption spectroscopy (after dissolution) and by optical microscopy. The resulting images show a layered structure of Cu/Ni-Cu coatings formed by Cu, Ni and/or Ni-Cu layers.

Keywords: micro- and nano-layers – multilayer coating – Cu/Ni-Cu – potentiostatic deposition – complex-forming agent

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2015-0035

 

Chemical Papers 69 (3) 462–469 (2015)

Wednesday, May 18, 2022

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