NUCLEATION AND GROWTH OF ELECTROLESS NICKEL DEPOSITS ON MOLYBDENUM ACTIVATED WITH PALLADIUM.

Article abstract of DOI:10.1149/1.2115541

Early stages of electroless nickel plating from an ammoniacal hypophosphite solution of pH 8. 8 at 50 degree C with palladium-activated Mo were investigated using TEM and SEM, potential measurements, and LSV. It was shown that activation of molybdenum in a PdCl//2/HCl solution resulted in the formation of palladium islands on the substrate. In the plating solution, the nickel deposition took place simultaneously, but it took place independently on the palladium islands and on the molybdenum substrate. It is concluded tha the nickel deposition on the molybdenum substrate occurred upon a thin layer of nickel, electrolytically deposited during a spontaneous potential shift. The role of the palladium islands was to catalyze electrooxidation of hypophosphite and induce the potential shift.

Full text of DOI:10.1149/1.2115541

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2015-06-09 to IP 138.251.14.35 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).