A double layer study of the (210) and (111) faces of gold in aqueous NaBF4 SOLUTIONS |
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Authors: | Antoinette Hamelin Zofia Borkowska Janusz Stafiej |
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Institution: | Laboratoire d''Electrochimie Interfaciale du C.N.R.S., 1 Place A. Briand, 92195 Meudon Principal Cedex (France);Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw (Poland) |
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Abstract: | Au(111) and Au(21O) faces of gold in aqueous NaBF4 solutions have been investigated using cyclic voltammetry and admittance measurements. On Au(21O) no specific adsorption of has been found. The results were first analysed accepting the Gouy-Chapman-Stern model for the double layer; like Ag(11O) and Ag(100) the inner layer capacity versus charge density curve has a broad maximum. For Au(111) it was not possible to draw clear conclusions and the variation of the inner layer capacity versus charge density seems to correspond to the accepted model only for the more negative densities of charge investigated.Models for the inner layer were discussed for the (210) face. |
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