On the origin of the double layer capacitance maximum of Pt(1 1 1) single crystal electrodes |
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| Institution: | 1. Center for Electrochemical Sciences — CES, Universität Bochum, Universitätsstr. 150, D-44780 Bochum, Germany;2. Analytische Chemie — Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstr. 150, D-44780 Bochum, Germany |
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| Abstract: | The double layer capacitance vs potential, Cdl(E), curve of Pt(1 1 1) electrodes in aqueous KClO4 and NaF solutions exhibits a maximum at about 0.1 V vs SCE. Since with lowered solute concentrations no Gouy–Chapman minimum can be found in Cdl(E), the peak is not related to the potential of zero free charge. |
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