Accession Number:

ADA193490

Title:

An Electrochemical and Raman Spectroelectrochemical Investigation of Underpotentially Deposited Silver on a Gold Substrate.

Descriptive Note:

Technical rept.,

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF CHEMISTRY

Personal Author(s):

• Pons, Stanley
• Li, Jianguo
• Liang, Jim

Report Date:

1986-07-30

Pagination or Media Count:

32.0

Abstract:

Electrochemical and spectroelectrochemical data indicate that underpotentially deposited silver adatoms on gold substrates are photolyzed to form silver metal clusters. The surface gold-gold stretch and gold-silver stretch bands are observed, as well as the surface chloride complex stretch. The chloride complex interacts with ions in the solution phase giving rise to shifts in the metal-chloride stretching vibrational frequency as a function of the applied electrode potential. However, the metal metal bands are more dependent on the electric field at the electrode surface.

Descriptors:

• *DEPOSITION
• *GOLD
• *SILVER
• ADATOMS
• BANDS(STRIPS)
• CHLORIDES
• CLUSTERING
• ELECTRIC FIELDS
• ELECTRODES
• IONS
• METALS
• SUBSTRATES
• SURFACES

Subject Categories:

• Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE