Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1977-11-14
1978-11-28
Mack, John H.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204 45R, 204 52R, 204 52Y, 204105R, 204DIG3, 429111, C25C 100, C25C 700
Patent
active
041274660
ABSTRACT:
A photoelectrochemical metal plating and purification process includes at least one electrolyte containing a reduction-oxidation couple, one species of which is a metal cation which can be reduced to elemental metal at an electrode. The system includes an N-type photosensitive semiconductor electrode at which, under illumination, an oxidation reaction occurs, with concurrent reduction of the metal cation at the counter electrode. In operation, one ionic species of the electrolyte is oxidized while metal ions are reduced and collected as the elemental metal at the counter electrode. In cases where the elemental metal is liquid at the operation temperature, it is collected as a liquid metal pool under the counter electrode.
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GTE Laboratories Incorporated
Keay David M.
Mack John H.
Weisstuch Aaron
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