Electrochemistry of Metal Surfaces
Abstract
The essence of this AFOSR project is investigation of the structure, composition, mode of attachment and reactivity of the surface molecular species which form when metals come into contact with fluids. A series of findings, advances in investigation technology and 91 scientific articles have occurred thus far during this project. These include: (i) determination of the orientations and modes of attachment of organic molecules attached to electrode surfaces; (ii) demonstration that each orientation of an adsorbed molecule manifests different chemical and electrochemical reactivity; (iii) discovery that electrodeposition of metals at singal-crystal surfaces produces highly- ordered layers; (iv) discovery that contact between metal surfaces and ionic solutions forms chemically unique, ordered layers; (v) adaptation of electron energy-loss spectroscopy (EELS) for measurement of vibrational spectra of molecules adsorbed at metal surfaces from solutions; (vi) systematic study of 150 adsorbed phenols, acids, amines, pyridines, mercaptans, alcohols, alkenes and aromatics as a structure (LEED), composition (Auger), molecule construction/ mode of surface attachment (EELS), chemical reactivity (all methods), and electro-chemical reactivity (cyclic voltammetry, CV); (vii) demonstration of the stability of these adsorbed layers toward vacuum and electron beams used in surface spectroscopy by performing CV before and after the electron spectra were obtained; and, (viii) studies of surface structure by means of Auger electrons.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1990
- Accession Number
- ADA224551
Entities
People
- Arthur T. Hubbard
Organizations
- University of Cincinnati