Desolvation of Ions in Subnanometer Pores and Its Effect on Capacitance and Double-Layer Theory

摘要

The study of charged solid-liquid interfaces,manifested as "double layers",represents a problem of both practical and scientific importance.Double layers are present in all electrolyte solutions and have been traditionally studied using planar noble-metal electrodes and mercury drops.However,in the ionic channels in cells or the small-diameter pores of electrochemical double-layer capacitors (EDLCs),ions are in a very confined situation,which is different from that of a planar solid/electrolyte interface.