Electron Transfer to C 60 and C 70 Fullerenes at Hydrodynamic and Dual Electrodes
| Autor: | A. J. Muller, Robert C. Haddon, Gary Dabbagh, Barry Miller, J. M. Rosamilia |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Fullerene
Renewable Energy Sustainability and the Environment Chemistry Diffusion Schmidt number Analytical chemistry Limiting current Electrolyte Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion Electron transfer Materials Chemistry Electrochemistry Rotating disk electrode |
| Zdroj: | Journal of The Electrochemical Society. 139:1941-1945 |
| ISSN: | 1945-7111 0013-4651 |
| Popis: | The reductions of and fullerenes in o‐dichlorobenzene (ODCB) electrolytes under controlled potential and convection at rotating disk and ring‐disk electrodes (RDE and RRDE) illuminate several aspects of the electron transfer processes. The stability of the successive one‐electron transfer products (up to and ions) is demonstrated through the RRDE. The diffusion coefficients of both fullerenes in ODCB/0.5M tetra n‐butyl ammonium bromide were measured by two RDE techniques, Levich limiting current behavior and the frequency response of sinusoidal hydrodynamic modulation (SHM). The former gave values of at 25°C for and , respectively, and the latter results were theoretically consistent with the Schmidt number of 17,400 so calculated, confirming the number of electrons transferred without the aid of Faraday's law. Voltammograms of the SHM current at the RDE show kinetic effects at the foot of each successive wave. |
| Databáze: | OpenAIRE |
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