Adsorption of n-pentanol from KPF6 aqueous solution on the (100) and (110)faces of Ag single crystal electrodes

The potential dependence of the adsorption of n-pentanol (NP) on the (100) and (110) faces of Ag single crystal electrodes from aqueous KPF6 solutions has been studied at 10 mV s(-1) potential scan rate by measuring the imped ance both at constant frequency (f) and by sweeping f from 11 kHz to 0.1 Hz . The adsorption of NP has been found to be strongly dependent on crystal o rientation. The results have been compared with those obtained on Ag(lll) w ith the same kind of single crystal preparation, as well as with Ag(100) el ectrolytically grown in a Teflon capillary [A. Popov, O. Velev, T. Vitanov, J. Electroanal. Chem. 256 (1988) 405]. (C) 2001 Elsevier Science B.V. All rights reserved.