Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
196451 | Electrochimica Acta | 2005 | 9 Pages |
Abstract
The electrochemical oxidation of 2,3- 2,4- and 2,5-diaminophenol, on platinum electrode, in acid medium was studied using cyclic voltammetry, in situ UV–vis and in situ FTIR spectroscopies. The spectroscopic data indicates that 2,4-diaminophenol suffers hydrolysis giving the formation of 2-amino-hydroquinone/2-amino-p-benzoquinone in solution. The oxidation mechanism of 2,5-diaminophenol is similar to the p-phenylenediamine giving 2-hydroxy-p-benzoquinoneimine and its hydrolysis product, 2-hydroxy-p-benzoquinone. The electrochemical results suggest that 2,3-diaminophenol generates a non-electroactive polymeric material on the electrode surface.
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Authors
H.J. Salavagione, J. Arias-Pardilla, J.L. Vázquez, M.C. Miras, E. Morallón, C. Barbero,