Adsorption Isotherm of Iodide Ions on Copper Single Crystal Planes in Sulfuric Acid
- 1 February 1975
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 122 (2) , 251-252
- https://doi.org/10.1149/1.2134188
Abstract
The surface coverage of I- on different crystal planes of Cu in H2SO4 at pH 1 and 30° was detd. by dissoln. measurements. Surface coverage increased to 0.9 at 10-4M I- on the (110) plane which adsorbed more I- than either the (100) or (111) planes. The data support the dissoln. of Cu → Cu+ → Cu2+ in 2 single-electron transfer steps. The corrosion potential indicates a pos. charge on the crystal planes and inhibition of acid corrosion by the adsorbed I-Keywords
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