Investigation of cyanide ions adsorbed on platinum and palladium coated silver island films by surface-enhanced Raman spectroscopy

E. Hesse, J.A. Creighton

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

Bimetallic films prepared by vacuum-depositing platinum onto silver island films have been evaluated for surface-enhanced Raman scattering (SERS), using CN− as the adsorbate. For platinum overlayers with mean thickness corresponding to 1–2 monolayers the spectrum is dominated by a band consistent with either CN− adsorbed at the platinum surface or with Pt(CN)42−. For thinner platinum overlayers, changes in the spectra due to migration of CN− from Ag(CN)2− to the surface platinum atoms were observed during the first few minutes of laser illumination. Similar palladium-on-silver films showed a prominent SERS band assigned to surface Pd(CN)42−.
Original languageEnglish
Pages (from-to)101-106
JournalChemical Physics Letters
Volume303
Issue number1-2
DOIs
Publication statusPublished - 1999

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