The Role of Metal Structure in Determining Solvent Orientation at the Electrode/Solution Interface
Abstract
The role of molecular packing on the dielectric properties of a solvent monolayer at a polarizable interface is examined for a hexagonally close packed system and a less well packed square lattice. Dipole-dipole interactions within the monolayer are considered both perpendicular and parallel to the geometrical electrode/solution interface. In both systems, dipoles with their vectors parallel to the interface predominate near the point of zero charge on the metal. As the charge on the metal increases, a capacity peak is observed whose value is much larger for the hexagonal lattice than the square one. Comparison with experimental data for single crystal silver electrodes demonstrates that the differences observed between capacity data on different low index faces cannot be due to differences in solvent molecule packing, but instead can be attributed to the presence of chemisorbed solvent molecules. Interfacial structure, solvent adsorption on electrodes, electrode capacity for single crystal electrodes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 24, 1992
- Accession Number
- ADA249751
Entities
People
- William Ronald Fawcett
Organizations
- University of California, Davis