Evidence for surface Ag + complexes as the SERS-active sites on Ag electrodes

Evidence is given that SERS-active sites at Ag electrodes are associated with Ag + ions, forming sparingly soluble surface complexes with ligands such as pyridine molecules and halide ions. Such surface Ag + complexes contribute a factor of >800 to the overall (10 7-fold) enhancement, possibly vi...

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Bibliographic Details
Published inChemical physics letters Vol. 102; no. 6; pp. 565 - 570
Main Authors Watanabe, T., Kawanami, O., Honda, K., Pettinger, B.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.1983
Elsevier Science
Subjects
Applied sciences
Chemistry
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
General and physical chemistry
Materials science
Metals, semimetals and alloys
Metals. Metallurgy
Physics
Solid-liquid interface
Specific materials
Surface physical chemistry
Surface complex
Liquid solid interface
Liquid solid adsorption
Organic adsorbate
Active site
Organic ligand
Electrode electrolyte interface
Transition metal
Experimental study
Pyridine
Adsorption
Raman scattering
Metallic adsorbent
Organic compound
Silver I Complexes
Halo complex
Organic compounds
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Summary:Evidence is given that SERS-active sites at Ag electrodes are associated with Ag + ions, forming sparingly soluble surface complexes with ligands such as pyridine molecules and halide ions. Such surface Ag + complexes contribute a factor of >800 to the overall (10 7-fold) enhancement, possibly via a resonance Raman effect.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(83)87467-3