Charge transfer between two immiscible electrolyte solutions
| Autor: | Jan Weber, Zdeněk Samec, Vladimír Mareček, Daniel Homolka |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Inorganic chemistry
Analytical chemistry chemistry.chemical_element Electrolyte Kinetic energy Photochemistry 2 2'-Bipyridine Ion Nitrobenzene Electron transfer chemistry.chemical_compound Reaction rate constant medicine Voltammetry Alkyl Dichloromethane chemistry.chemical_classification Charge (physics) Viologen Ruthenium Dichloroethane Ferrocene chemistry Chemical physics Charge transfer coefficient medicine.drug |
| Zdroj: | Journal of Electroanalytical Chemistry and Interfacial Electrochemistry. 145:213-218 |
| ISSN: | 0022-0728 |
| DOI: | 10.1016/s0022-0728(83)80307-6 |
| Popis: | Convolution analysis was used in the evaluation of the thermodynamic and kinetic parameters of two charge-transfer systems at the water/nitrobenzene interface: Cs+ ion transfer and the electron transfer between ferrocene in nitrobenzene and hexacyanoferrate(III) in water. Attention was focused in particular on the potential dependence of the rate constant of the ion or electron transfer. The apparent rate constant was corrected for the double-layer effect using the capacity data and the Gouy-Chapman theory. It is concluded that the observed potential dependence of the apparent rate constant of Cs+ ion transfer arises from the effect of the total potential difference on the concentration of reactants at the reaction planes. In the electron transfer the analysis is considerably complicated by the possibility of ion-pairing, the bridge mechanism of electron transfer and the existence of the different planes of the closest approach for the reactant and the base electrolyte ions. Nevertheless, an attempt at analysis indicates that an intrinsic potential dependence of the rate constant is involved. |
| Databáze: | OpenAIRE |
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