Analysis of experimental data on the EDL capacitance for different metals in asymmetrical electrolytes: Accounting for the solution nonideality |
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| Authors: | V V Emets B B Damaskin |
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| Institution: | (1) Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 117071 Moscow, Russia;(2) Moscow State University, Vorob’evy gory, 119899 Moscow, Russia |
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| Abstract: | Potential dependences of differential capacitanceC are measured in diluted aqueous La2(SO4)3 solutions on Hg, Tl-Ga, and Cd-Ga electrodes and in aqueous Na2SO4 solutions on the Cd-Ga electrode. The 1/C vs. 1/Cd dependences (where Cd is the differential capacitance of the diffuse layer) are linear and have a unit slope at the potential of zero charge, provided
Cd is calculated using the Gonzalez-Sanz theory. Calculations based on the Gouy-Chapman-Grahame theory yield inadequate results. |
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