Electrochemical Generation of Polymorphic Structures at Charged Aqueous Interfaces. An Example of Redox Couple Methylene Blue/Leucomethylene Blue
- 1 December 1984
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 113 (1) , 93-104
- https://doi.org/10.1080/00268948408071674
Abstract
Leueomethylene blue (3,9-bis(dimethylamino)-phenathiazin) electrogenerated at the interface electrode/aqueous electrolyte solution forms several ordered structures which depend strongly on the potential and charge of the electrode surface and type of anions present at the interface. Interconversion between the structures, provoked by potential steps (1 mV – IV) is characterized by fast phase transitions corresponding to progressive two-dymensional nucleaiton and growth. Kinetics and mechanism of the fast charge transfer process (1034 s−1) through the ordered multilayer films at mercury, gold and platinum electrodes are presented.Keywords
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