Studies of Electrochemical Interfaces by the Use of EC-NMR (The D.C.Grahame Award lecture.)

摘要

EC-NMR,the technique developed at Urbana-Champaign in the early 1990s [1],permits detailed electronic-level studies of solid/liquid electrochemical interfaces under potentiostatic control in the presence of electrolyte.The uniqueness of this technique is its sensitivity to chemical and electronic structure,both long-range and local,and the relative ease in providing spectroscopic signatures specific to surface motions.Those features,when combined with results of electrochemical measurements,enable access to chemical information on Fermi-level local density of states (Ef-LDOS) of both metal surfaces and adsorbates,together with new insights into surface diffusion of ad-sorbate species.