Electrochemical characteristics of binary silver alloys in alkaline solution

The electrochemical features, electrode capacity and corrosion stability, o f silver alloys with Tl, Pb, P,Sb, Ge and In have been investigated. Compar ed to silver some silver alloys showed improved silver oxide formation and conductivity. The best effects, i.e., dramatic increases of 150% for format ion of oxide, were obtained with small amounts of alloying component: 0.44% Tl or 0.44% Pb. Based on obtained results, those effects could be explaine d in terms of increase of real electrode surface as a consequence of ingred ients oxidation, preceding the silver oxidation. (C) 1999 Elsevier Science S.A. All rights reserved.