Chemistry: electrical and wave energy – Processes and products
Patent
1980-02-25
1981-02-10
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
204 23, 204 35R, 204290R, C25B 116, C25B 126, C25B 1102, C25B 1103
Patent
active
042500044
ABSTRACT:
An improved process is described for the electrodeposition of both a low overvoltage metal and a sacrificial metal onto an electrically conductive substrate. The sacrificial metal is later removed by leaching the electrodeposited substrate with alkali metal hydroxide. The improvement comprises adding a sacrificial metal to the electroplating solution after electrodeposition is initiated. The amount of electric current supplied to the electroplating solution during electrodeposition may be increased or decreased over time intervals to increase the surface area and the electrochemical activity of the electroplated substrate.
REFERENCES:
patent: 3291714 (1966-12-01), Hall et al.
patent: 4104133 (1978-08-01), Brannan
Australian Patent, Application No. 32105/75.
German Offenlegungsschrift No. 2,807,054 File No. P2807054.4, Appln. Date Feb. 18, 1978 Disclosure Date, Aug. 24, 1978, "Electrode", Yoshio Oda et al.
Netherlands, Appln. No. 75-07550, filed Jun. 25, 1975, laid open to inspection Jan. 20, 1976, "Electrolytic Cathode and Processes for the Manufacture Thereof".
Carpenter Larry D.
Miles Ronald C.
Clements Donald F.
Haglind James B.
Olin Corporation
Tufariello T. M.
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