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Citation: Su Wen-Duan. Properties of Solvent Molecules and the Characteristic Variations of Inner Layer Differential Capacity[J]. Acta Physico-Chimica Sinica, ;1994, 10(12): 1066-1070. doi: 10.3866/PKU.WHXB19941203 shu

Properties of Solvent Molecules and the Characteristic Variations of Inner Layer Differential Capacity

Su Wen-Duan

1.
Department of Chemistry,Xiamen University,Xiamen 361005

Received Date: 28 September 1993
Available Online: 15 December 1994

The influence of solvent porperties on the inner layer capacity C1(σ)for electrode/solution interface is analysed by means of curve-fitting to hypothetic C1(σ)variance based on the model of dipole orientation distribution presented in previous papers[1,2].The profile of fitting curve exhibits one or two peaks in the variation of C1 with σ (surface charge density), corresponding to two main types of idealy C1 (σ) curves. However, the shape of C1(σ)courve would be deformed due to the effects of molecular polarization, the difference of dipo1e orientation energies relating to different orientated states and the interaction between dipoles in solvent monolayer at electrode/solution interface. Therefore the characteristic variation of C1(α) profile can be predicted by the solvent natures for variously real electrode/ solution systems.
- Electrode/solution ineerface,
- Electrical double layer,
- Inner layer differential capacity
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