Accession Number:

ADA191262

Title:

Two Dimensional Compressibility of Electrochemically Adsorbed Lead on Silver (111).

Descriptive Note:

Interim technical rept.,

Corporate Author:

PUERTO RICO UNIV RIO PIEDRAS DEPT OF PHYSICS

Personal Author(s):

• Melroy, O. R.
• Toney, M. F.
• Borges, G. L.
• Samant, M. G.
• Kortright, J. B.

Report Date:

1988-01-28

Pagination or Media Count:

16.0

Abstract:

We report the two dimensional compressibility of electrochemically deposited lead on silver 111. Measurements were made in-situ in contact with solution using grazing incidence x-ray scattering. Between monolayer formation and bulk deposition, the near neighbor distance of the lead monolayer decreases linearly with applied potential, proportional to the chemical potential. Since the lead monolayer is in equilibrium with the lead in solution, the isothermal compressibility of the monolayer can be calculated and is 0.9 sq. A eV. Implications of the highly strained monolayer on the wetting behavior of lead are discussed.

Descriptors:

• *SILVER
• *X RAY SCATTERING
• *DEPOSITION
• *LEAD(METAL)
• ADSORPTION
• CHEMICALS
• GRAZING
• LAYERS
• COMPRESSIVE PROPERTIES
• TWO DIMENSIONAL
• ISOTHERMS
• BEHAVIOR
• WETTING

Subject Categories:

• Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE