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Anodic Deposition of Iodide Ion at Silver Electrode
Author(s) -
Fan FuRen,
Lin ZuiFeng
Publication year - 1980
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198000023
Subject(s) - chemistry , exchange current density , anode , electrode , aqueous solution , charge transfer coefficient , iodide , current density , inorganic chemistry , analytical chemistry (journal) , ion , silver iodide , reaction rate constant , deposition (geology) , electrochemistry , kinetics , cyclic voltammetry , chromatography , organic chemistry , physics , quantum mechanics , sediment , biology , tafel equation , silver halide , paleontology , layer (electronics)
Anodic deposition of iodide ion on silver at 25° in aqueous (0.5 M KNO 3 ) and in 90% (w/w) ethanol‐water (0.05 M KClO 4 ) solutions was studied galvanostatically. The exchange current density, transfer coefficient and the rate constants for the electrode reaction were evaluated. The experimental results revealed that the overall electrode reaction and the charge‐transfer step was the same one, i.e ., , which might be assumed highly reversible as reflected by the exchange current density ( i ) and transfer coefficient (α). The numerical values of the rate constants, and at 25° were, in aqueous solution, 1.02×10 −5 and 2.88×10 −6 , and in ethanol solution, 2.88×10 −5 and 6.3×10 −6 cm sec −1 , respectively.