A model for the metal-solvent coupling at a charged interface: Effect on the differential capacitance

Amokrane, S.; Russier, V.; Badiali, J.P.

doi:10.1016/0039-6028(89)90115-5

Cited by 25 publications

(31 citation statements)

References 32 publications

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“…Thus, according to the classical model, the variations of K ion may be mainly ascribed to the changes of the inner layer thickness (this thickness is greater for the Hg electrode than for the Ag electrode). In contrast to the classical model, the recent models of a double layer [5] also introduce into C i a contribution of the metal, C m (cf. Eq.…”

Section: Analysis Of C Imentioning

confidence: 99%

“…17 in [5], i.e. by relaxation of the surface dipole of the metal with the charge and also by the value of the metal-solvent distance, d, and its variation with the charge of the electrode.…”

Section: Introductionmentioning

confidence: 99%

“…In eect, C m contributes to the inner layer capacity C i , in contrast to the classical models where C À1 m 0. Amokrane et al [5] described a method of determination of C m values and reported the corresponding data for the Ag(111) electrode. Knowing C m and C i from experimental data, one may calculate the contribution of the solvent using the relation [5]:…”

Section: Introductionmentioning

confidence: 99%

“…Amokrane et al [5 ] applied this method to the experimental data obtained by Valette et al [8] for Ag(111) in NaF and by Valette [9] for Ag(110) and (100) in aqueous solutions of KPF 6 . It should be born in mind, however, that whereas PF À 6 ions do not adsorb on a silver electrode, this is not the case for F ) ions [9].…”

Section: Introductionmentioning

confidence: 99%

“…It should be born in mind, however, that whereas PF À 6 ions do not adsorb on a silver electrode, this is not the case for F ) ions [9]. The authors [5] suggested that although some dierences could be observed in the curves of C s versus r (where r is surface charge density) for the three low-index faces of silver around the maximum of C s , it was not possible to discriminate signi®cantly between these three faces. In our opinion, however, it is dicult to compare the data obtained in solutions of various anions (F ) and PF À 6 ) which have opposite eects on the water structure.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the differential capacity at the silver / lithium perchlorate aqueous solution interface

Jurkiewicz-Herbich

Miłkowska

2001

J Solid State Electrochem

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Analysis of the dierential capacity of ideally polarized Ag electrodes without speci®c adsorption is presented. The capacity was measured for three crystal faces of Ag [(111), (100) and (110)] and for polycrystalline Ag in aqueous solutions at dierent concentrations of LiClO 4 . The inner layer contribution C i was analysed for all the systems studied according to Grahame's concept. Moreover, using the procedure proposed by Amokrane and Badiali, several contributions to C i , i.e. the metal (C m ), the solvent (C s ) and dipole orientation (C dip ), were calculated. The in¯uence of the kind of crystal face of the Ag electrode on the values of these contributions is discussed.

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Section: Analysis Of C Imentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analysis of the differential capacity at the silver / lithium perchlorate aqueous solution interface

Jurkiewicz-Herbich

Miłkowska

2001

J Solid State Electrochem

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The Role of Anion Adsorption in the Effect of Electrode Potential on Surface Plasmon Resonance Response

2017

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Surface plasmon resonance, being widely used in bioanalytics and biotechnology, is influenced by the electrical potential of the resonant gold layer. To evaluate the mechanism of this effect, we have studied it in solutions of various inorganic electrolytes. The magnitude of the effect decreases according to the series: KBr>KCl>KF>NaClO . The data were treated by using different models of the interface. A quantitative description was obtained for the model, which takes into account the local dielectric function of gold being affected by the free electron charge, diffuse ionic layer near the gold/water interface, and specific adsorption of halides to the gold surface with partial charge transfer. Taking into account that most biological experiments are performed in chloride-containing solutions, detailed analysis of the model at these conditions was performed. The results indicate that the chloride adsorption is the main mechanism for the influence of potential on the surface plasmon resonance. The dependencies of surface concentration and residual charge of chloride on the applied potential were determined.

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Metal/Solution Interface: An Experimental Approach

Sobkowski

Jurkiewicz-Herbich

2002

Modern Aspects of Electrochemistry

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The electrical double layer has been dealt with in countless papers and in a number of reviews, including those published in previous volumes of the Modern Aspects of Electrochemistry series. [1][2][3][4][5][6][7][8][9] The experimental double layer data have been reported and commented on in several important works in which various theories of the structure of the double layer have been postulated. Nevertheless, many double layer-related problems have not been solved yet, mainly because certain important parameters describing the interface cannot be measured. This applies to the electric permittivity, dipole moments, surface density, and other physical quantities that are influenced by the electric field at the interface. It is also often difficult to separate the electrostatic and specific interactions of the solvent and the adsorbate with the electrode. To acquire necessary knowledge about the metal/solution interface, different metals, solvents, and adsorbates have been studied.In the earlier concepts of the interface structure, the metal was treated as a reservoir of electrons, uniformly distributed in the bulk of the phase. Spatial distribution of charges was considered mainly on the solution side. No such considerations were made for the solid electrodes, except for the Modern Aspects of Electrochemistry, Number 31, edited by John O'M. Bockris et al.

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A model for the metal-solvent coupling at a charged interface: Effect on the differential capacitance

Cited by 25 publications

References 32 publications

Analysis of the differential capacity at the silver / lithium perchlorate aqueous solution interface

Analysis of the differential capacity at the silver / lithium perchlorate aqueous solution interface

The Role of Anion Adsorption in the Effect of Electrode Potential on Surface Plasmon Resonance Response

Metal/Solution Interface: An Experimental Approach

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