  The structure of an aqueous solution of sodium chloride at a planar electrode
is investigated by integral equation techniques. With the central force water
model the aqueous electrolyte is modelled as a mixture of sodium and chloride
ions and partially charged hydrogen and oxygen atoms interacting via effective
spherically symmetric pair potentials. The bulk correlation functions are
obtained from the Ornstein-Zernike equation. With the Wertheim-Lovett-Mou-Buff
equation we have calculated the density profiles at the uncharged and charged
electrode. Steric interactions between the differently sized ions and the
ice-like water structure near the electrode dominates the ionic distribution.
This model electrolyte also responds differently to opposite charges on the
electrode.
