Effect of Cyclic Benzo-12-Crown-4 Polyether on Copper Electrodeposition from Sulfate Aqueous Ethanol |
18.09.2008 г. |
Effect of Cyclic Benzo-12-Crown-4 Polyether on Copper Electrodeposition from Sulfate Aqueous Ethanol Baths V. V. Kuznetsov, L. M. Skibina, and S. V. Geshel’ Rostov State University, ul. Zorge 7, Rostov-on-Don, 344090 Russia e-mail:
Этот e-mail защищен от спам-ботов. Для его просмотра в вашем браузере должна быть включена поддержка Java-script
Received February 15, 2005 Abstract — It is found that the effectiveness of crown ether (with benzo-12-crown-4 as an example) is a function of the composition of the water–ethanol solvent and the bulk and surface concentration of sulfate anions. An increase in the adsorbability of sulfate anions at Cu in the presence of the crown ether ('-effect) enhances its inhibitive effect on copper electrodeposition. The electrode reaction is best inhibited, and electroplates with enhanced tribotechnical characteristics are obtained, in the zone of ethanol structure stabilization, in which the adsorption of anions by copper is the highest because of the “desalting” effect. DOI: 10.1134/S0033173206030076
|