Accession Number:

ADA224551

Title:

Electrochemistry of Metal Surfaces

Descriptive Note:

Final rept. 1 Jul 1986-30 Apr 1990

Corporate Author:

CINCINNATI UNIV OH DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1990-06-30

Pagination or Media Count:

57.0

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.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE