Electric double layer structure and adsorption of cyclohexanol on single crystal cadmium, antimony and bismuth electrodes

Electrochemical Properties of Nanoporous Carbon Electrodes

“…The model worked out by Amokrane and Badiali [4,5] gives good explanations of the capacitance data established for different metal electrodes in various aqueous and non-aqueous solutions [6,7]. In this theory, the metal is described using the density functional formalism, and the metal-solvent interaction as a sum of an attractive term (due to the dispersion forces (Van der Waals)) and a repulsion term (simulating the exclusion of the metal electrons from the electron cloud of the solvent molecules).…”

“…glassy carbon) electrodes have been calculated using the surface roughness factor obtained from impedance data according to the various models [1,[10][11][12][13][14][15][16][17] (Parsons-Zobel plot method, Valette-Hamelin approach, fractal analysis described more in detail in [12,16,17]). According to the systematic analysis of experimental data, [12,16], the inner layer capacitance values depend only slightly on the surface roughness of the solid electrode at |E| > E σ=0 , if c el 0.1 M. The values of inner layer capacitance obtained for polycrystalline metal electrodes lie between the C i values for single crystal planes for the corresponding metal [6,12,16], have the medium values and, to a first very rough approximation, characterize the inner layer parameters for metal | electrolyte interface under discussion. Only for dilute electrolyte systems (c el 0.01 M) in the region of zero charge potential there is a complicated dependence of C i on E, but at the electrode potentials |E| > E σ=0 , there is a monotonic dependence of C i on E. More detailed analysis of the problems for polycrystalline metal electrode | electrolyte interface as well as for liquid | liquid interface are given in [10][11][12][13][14][15][16][17].…”

“…According to the results of investigations [4][5][6][7], the inverse inner layer capacitance can be expressed as C…”

“…Only for dilute electrolyte systems (c el 0.01 M) in the region of zero charge potential there is a complicated dependence of C i on E, but at the electrode potentials |E| > E σ=0 , there is a monotonic dependence of C i on E. More detailed analysis of the problems for polycrystalline metal electrode | electrolyte interface as well as for liquid | liquid interface are given in [10][11][12][13][14][15][16][17]. Thus, the values of C m for glassy carbon electrodes in 0.1 M electrolyte solution have to be taken with some reservation because the values of the inner layer capacitance depend somewhat on the surface roughness values used for the calculation of C m values [6,7,[10][11][12]. However, the order of C m values seems to be reasonable and, thus, the data in figure 1 indicate that the capacitance of the carbon phase depends noticeably on the crystallographic structure of the carbon material [1][2][3].…”

“…A circuit element with the distributed characteristic can not be exactly expressed as a combination of a finite number of ideal circuit elements, except in certain limiting cases. The distributed characteristic results mainly from the two origins [1,6,[18][19][20][21][22][23][24][25].…”