Surface-enhanced Raman scattering of HCN at Pb-modified Ag surfaces

Diane S. Kellogg, Jeanne E. Pemberton

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

The surface-enhanced Raman scattering (SERS) behavior of HCN at polycrystalline Ag electrodes modified by monolayer and submonolayer amounts of underpotentially deposited Pb is presented. Changes in SERS intensity as a function of Pb coverage are interpreted in terms of preferential displacement of HCN from active sites by deposited Pb. By comparison with previous results obtained with pyridine and Cl- as adsorbates in similar experiments, these data suggest that both large-scale and atomic-scale roughness features contribute significantly to the SERS intensities measured in these systems.

Original languageEnglish (US)
Pages (from-to)1126-1130
Number of pages5
JournalJournal of physical chemistry
Volume91
Issue number5
StatePublished - Dec 1 1987

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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