Modulated Surface Vibrational Spectroscopies at Electrode/Electrolyte Interfaces.
UTAH UNIV SALT LAKE CITY DEPT OF CHEMISTRY
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In this report, we will discuss the applicability of a new infrared vibrational probe to studies of the structure and orientations of molecular species at or near the electrode-solution interface and the dynamics of adsorptiondesorption processes. Such studies have been virtually impossible with available instrumentation in the past due to the extremely large absorbance by the solventelectrolyte system. Early investigations on electrochemical systems were thus attempted primarily with internal reflectance methods that did not require that the radiation pass through the bulk solventelectrolyte system. This method is limited, however, due to the few choices of infrared-transport electrode materials semiconducting materials or very thin metal films on insulating transparent salts and polymers in addition to more stringent cell designs and electrode geometries.
- Atomic and Molecular Physics and Spectroscopy