Electrochemical Stability of LiMF6 ( M = P , As , Sb ) in Tetrahydrofuran and Sulfolane
| Autor: | L. A. Dominey, Victor R. Koch, J. L. Goldman, C. Nanjundiah |
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| Rok vydání: | 1988 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry Inorganic chemistry Electrolyte Condensed Matter Physics Electrochemistry Chemical reaction Surfaces Coatings and Films Electronic Optical and Magnetic Materials Electrochemical cell chemistry.chemical_compound Materials Chemistry Ionic conductivity Sulfolane Cyclic voltammetry Tetrahydrofuran Nuclear chemistry |
| Zdroj: | Journal of The Electrochemical Society. 135:2914-2917 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.2095462 |
| Popis: | The electrochemical stability of LiSbF6 and LiPF6 in aprotic organic solvents has been investigated. Electrochemical studies, conductivity measurements, and open-circuit stability tests were conducted on LiSbF6 in tetrahydrofuran and sulfolane. Cyclic voltammetric studies of SbF6(-) were compared with those of AsF6(-) and PF6(-) anions. Sb(V) was reduced to Sb(III), and then to Sb(0). AsF6(-) was reduced to AsF3, while no reduction of PF6(-) was observed. The reduction products of AsF6(-) and SbF6(-) passivated the glassy carbon electrode, presumably due to LiF precipitation. Peak potentials were observed to shift in the positive direction as a function of concentration. This was accounted for on the basis of a follow-up chemical reaction. |
| Databáze: | OpenAIRE |
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