Nickel Plating by Chemical Reduction

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Abstract

Brenner and Riddell1 have described a method for nickel and cobalt plating by chemical reduction of the metal salts with sodium hypophosphite under both acid and alkaline conditions. Aside from its utility, this reaction is one of considerable interest by virtue of its catalytic nature. Thus, in the concentrations they use, deposition occurs only if certain metals are immersed in the solution and, even in their presence, deposition is inhibited by the addition of such materials as potassium thiocyanate and lead in small amounts. It is suggested that some insight on both these effects and also on the unusual kinetics of the reaction is obtained by the mechanisms outlined below.

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References

  1. 1

    Brenner, A., and Riddell, G. E., J. Res. U.S. Nat. Bur. Stand., 37, 31 (1946); 39, 385 (1947).

  2. 2

    Michaelis, L., Ann. New York Acad. Sci., 40, 39 (1940).

  3. 3

    Cf. Heyrovsky, J., Osterreich. Chem. Z., 48, 24 (1947).

  4. 4

    Latimer, W., "Oxidation Potentials" (Prentice Hall, Inc., New York, 1938).

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BREMNER, J. Nickel Plating by Chemical Reduction. Nature 162, 183–184 (1948) doi:10.1038/162183b0

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