Experience and Perspectives of Electrodeposition from Electrolytes-Colloids of Nickel Plating

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The investigation and use of colloid-electrolyte baths from the time of first, publications had proceeded mainly in the field of working out highly efficient baths with low concentrations of electrolytes in connection with acute ecological necessity, saving energy and profit. We call briefly colloid-electrolytes such plating baths, where metal deposits are formed by reducing not only metal ions but also colloids and fine dispersions of this metal compounds. This dispersions in the field of the cathode (in the part of diffusion layer where the rate of stirring usually tends to zero) may be treated in certain optimal cases as the systems of mobile pores, giving rise to electrokinetic phenomena, equilibrium and nonequilibrium and thus to efficient stirring this part of diffusion layer, difficulties of the electrochemically reacting species transfer through which are the main obstacle for the cathode processes intensification. It results in reducing or eliminating the diffusion control and gives the essential rise of the limiting current densities. There was observed in some cases for chloride colloid electrolytes the correlation between decrease of polarization in comparison with conventional baths and degree of operating current densities increase. In chloride solutions colloids and fine dispersions, especially protected ones, are more stable than in solutions, where multi charged anions prevail. The polarization's decrease in chloride electrolytes was investigated also. We tend to explain the referred to phenomena by lessening the diffusion control in presence of mobile pore's systems of reducing to metal at the cathode colloids and fine dispersions of that metal's compounds.

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Dr. Denis Solovev

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682-687

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L.A. Degtyar et al., "Experience and Perspectives of Electrodeposition from Electrolytes-Colloids of Nickel Plating", Materials Science Forum, Vol. 945, pp. 682-687, 2019

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February 2019

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[1] Kudryavtseva I.D., Kukos F.I., Selivanov V.N. et al. - The ISE 37th meeting extended abstracts. Vilnious. 11 (1986) 169-171.

[2] Kudryavtseva I.D., Balacai V.I., Kukos F.I. INT. Electrochimia (USSR). 33 (1990) 50-84.

[3] Kudryavtseva I.D. INTERFINISH 96. 14th World Congress Birminghem UK. (1996) 387-393.

[4] Degtiar L.A., Dubov B.U., Kukos F.I., Kudrjavtzseva I.D The coating on nikel's basis from low concentrated сolloid-electrolytes. Interfinish-99, Word Congress, Birmingham, England. (1996) 369-375.

[5] Kudryavceva I.D., Selivanov V.N. Vysokoproizvoditel'nye maloothodnye tekhnologii ehlektroosazhdeniya metallov iz ehlektrolitov-kolloidov. J. Gal'vanotekhnika i obrabotka poverhnosti. 2 (4) (1993) 33-36.

[6] Selivanov V.N., Golovko E.E., Tarapurina E.V., Brusova E.S. Ehlektroosazhdenie medi iz sul'fatnyh i nitratnyh ehlektrolitov-kolloidov. J. Izvestiya vysshih uchebnyh zavedenij. Severo-Kavkazskij region. Seriya: Estestvennye nauki. 1 (143) ( 2008) 80-82.

[7] Kudryavceva I.D., Skalozubov M.F., Yurinskaya L.V. K voprosu o primenenii dvuhfaktornoj teorii bleskooobrazovaniya. J.Ehlektrohimiya. 7 (10) (1971) 1429.

[8] Kudryavceva I.D. Intensifikaciya ehlektroosazhdeniya metallov i splavov iz ehlektrolitov-kolloidov. Doctor's thesis. Novocherkassk (1994).

[9] Selivanov V.N. Zakonomernosti i osobennosti ehlektroosazhdeniya gal'vanicheskih pokrytij iz ehlektrolitov-kolloidov.Izvestiya vysshih uchebnyh zavedenij. J. Severo- Kavkazskij region. Seriya: Estestvennye nauki. 1 (2008) 5-8.

[10] Degtjar L.A., Dubov B.U., Kudryavtseva I.D. The Electrodeposition of Nickel, Solderable and Wear-resistant Nickel-Boron Alloys from Low Concentrated Colloid- Electrolytes. Trans. IMF, 77 (3) (1999) 123.

DOI: https://doi.org/10.1080/00202967.1999.11871265

[11] Kudryavceva I.D., Selivanov V.N., Kukoz F.I. Vozmozhnosti uskoreniya processov ehlektroosazhdeniya metallov iz ehlektrolitov, soderzhashchih kolloidy i tonkie vzvesi ih soedinenij, razryazhayushchihsya na katode, J. Ehlektrohimiya. 20 (1) (1984) 63-68.

[12] Degtyar' L.A. Sovershenstvovanie tekhnologii ehlektroosazhdeniya splavov nikel'-bor I rasshirenie oblastej ih primeneniya (Ph.D thesis) Novocherkassk (1993).

[13] Grigorov, O.N., Elektrokineticheskie yavleniya (Electrokinetic Phenomena), Leningrad, (1973).

[14] Degtyar' L.A. Nekotorye osobennosti mekhanizma ehlektroosazhdeniya iz ehlektrolita-kolloida na osnove nikelya. J.Vestnik Donskogo gosudarstvennogo agrarnogo universiteta. 1 (7) (2013) 73-81.

[15] Degtyar' L.A., Zhukova I.YU., Mishurov V.I., Ivanina I.S. Osobennosti processa ehlektroosazhdeniya zhelezo-nikelevogo splava iz ehlektrolita-kolloida. V knige: Fundamental'nye i prikladnye voprosy ehlektrohimicheskogo i himiko-kataliticheskogo osazhdeniya metallov i splavov Tezisov dokladov konferencii. FGBUN Institut fizicheskoj himii i ehlektrohimii im. A.N. Frumkina Rossijskoj akademii nauk, 2017, p.22.

[16] Degtyar' L.A., Kudryavceva I.D. O stabil'nosti ehlektrolita dlya ehlektroosazhdeniya splava nikel'-bor. J. Gal'vanotekhnika i obrabotka poverhnosti. 3 (5-6) (1994) 41-47.

[17] Matijevic E. Preparation and properties of monodispersed metal hydrousoxide lattices, in the book: Trends in electrochemistry. (1976).

[18] Matjevic E.J Progr. Colloid and Polymer Sci. 61 (1976) 24-35.

[19] Piontelli R., Poli G., Gazz. Chim. Ital., 79, 10, 214, 53 5(1949).

[20] Schukov I.I. Selected works. - Leningrad: AS USSR. (1952) 277-307.