The Au(111)/electrolyte interface: A tunnel-spectroscopic and DFT investigation

Abstract

(Figure Presented) The interface of experiment and theory: A combination of distance tunneling spectroscopy (left; Au gray, H white, O red, S green) and density functional theory calculations has been employed to derive a detailed model of the electric double layer for Au(111) in H2SO4 at positive potential. Evidence for a double layer structure normal to the surface is presented, and the absolute width of the tunnel gap was determined through the DFT calculations. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.