Chemical Structure and Kinetics at Liquid/Solid Interfaces
Abstract
This program of research is to develop spectroscopic methods for exploring chemical structure and molecular dynamics at interfaces between dielectric solids and liquids. The research is carried out using fluorescence and vibrational spectroscopy from probe molecules where spectral and temporal differences in emission, absorption, or scattering provide information about the surface onto which they are adsorbed or bound. Studies focus on the interfacial chemistry of oxide surfaces (mostly silica) and derivatized silica in contact with liquids. The spectral and temporal response of probe molecules is used to observe differences in the chemical environment at the liquid-solid interface due to the presence of bound or adsorbed molecules. Time-resolution is also valuable in sorting out heterogeneous surface environments from differences in emission rate constants, adsorption rates, and reaction kinetics of probe molecules to solid surfaces are being measured using perturbation methods. (jes)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1990
- Accession Number
- ADA222766
Entities
People
- Joel M. Harris
Organizations
- University of Utah