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

Jianguo Li, Jim Liang, Carol Korzeniewski, Stanley Pons

Research output: Contribution to journalArticle

4 Scopus citations

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. The metal-metal bands are independent of the electric field at the electrode surface. The origin of these bands is discussed.

Original languageEnglish
Pages (from-to)470-476
Number of pages7
JournalLangmuir
Volume3
Issue number4
DOIs
StatePublished - Jul 1 1987

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