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Electrochemistry and charge transport in sporopollenin particle arrays |
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| Authors: | Matthew J Thomasson David J Baldwin Alberto Diego-Taboada Stephen L Atkin Grahame Mackenzie Jay D Wadhawan |
| Institution: | 1. Department of Physical Sciences (CHEMISTRY), The University of Hull, Cottingham Road, Kingston-upon-Hull HU6 7RX, United Kingdom;2. Sporomex, Ltd., Old Factory, Westgate, Driffield YO25 6TH, United Kingdom;3. The Hull-York Medical School, The University of Hull, Cottingham Road, Kingston-upon-Hull HU6 7RX, United Kingdom |
| Abstract: | Electrochemical oxidation of hollow sporopollenin particles immobilised on an electrode surface is investigated in aqueous acidic solution. Redox activity is demonstrated to occur via a mixture of 2e?–2H+ and 2e?–1H+ processes, likely due to the oxidation of conjugated phenolics embedded within the surface-shell of the polymer particles. Charge transport over the surface is suggested to be fast based on comparison with an approximate physicochemical model. |
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