Use of the Ag/AgCl/Cl[sup −] Electrode to Estimate Solubility Products in Ambient Temperature Ionic Liquids
- 1 January 2000
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 147 (9) , 3414-3310
- https://doi.org/10.1149/1.1393914
Abstract
Cementation of copper onto zinc from a sulfate bath was investigated through polarization measurements of both the anodic and cathodic half‐cell reactions as well as practical cementation studies. Individual half‐cell reactions, when isolated in a dual cell, followed a first‐order rate with respect to (cathodic) without any excess zinc dissolution (at the anode) via a hydrogen reaction. In the presence of a zinc surface and in a single bath, excess zinc dissolved via hydrogen reduction and the first‐order copper cementation rate was enhanced after an initial slow step. The enhanced rate is associated with a decrease of the mixed potential, . Deposited copper catalyzes, excess zinc dissolution via hydrogen reduction reaction. © 2000 The Electrochemical Society. All rights reserved.Keywords
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