EFFECT OF UNDERPOTENTIALLY DEPOSITED LEAD ON THE SERS OF CHLORIDE, BROMIDE, AND THIOCYANATE ADSORBED AT SILVER ELECTRODES

EVIDENCE FOR CHEMICAL CONTRIBUTIONS TO SERS.

Jeanne E Pemberton, Jose C. Coria-Garcia, Rebecca L. Hoff

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A study of the effect of underpotentially deposited Pb on the SERS of Cl** minus , Br** minus , and SCN** minus adsorbed at Ag electrodes is presented in this report. The quenching behavior of the SERS of these adsorbates by the deposited Pb is different for each adsorbate. The SERS of SCN** minus is quenched rapidly by very small amounts of underpotentially deposited Pb, while the quenching for Br** minus and Cl** minus is less drastic. These results are interpreted in terms of a charge-transfer model for SERS that is sensitive to the changes in work function at microscopic sites upon Pb deposition.

Original languageEnglish (US)
Pages (from-to)150-159
Number of pages10
JournalLangmuir
Volume3
Issue number2
StatePublished - Mar 1987

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Adsorbates
Bromides
Silver
Chlorides
bromides
Quenching
Lead
quenching
chlorides
silver
Electrodes
electrodes
Charge transfer
charge transfer
thiocyanate

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

EFFECT OF UNDERPOTENTIALLY DEPOSITED LEAD ON THE SERS OF CHLORIDE, BROMIDE, AND THIOCYANATE ADSORBED AT SILVER ELECTRODES : EVIDENCE FOR CHEMICAL CONTRIBUTIONS TO SERS. / Pemberton, Jeanne E; Coria-Garcia, Jose C.; Hoff, Rebecca L.

In: Langmuir, Vol. 3, No. 2, 03.1987, p. 150-159.

Research output: Contribution to journalArticle

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abstract = "A study of the effect of underpotentially deposited Pb on the SERS of Cl** minus , Br** minus , and SCN** minus adsorbed at Ag electrodes is presented in this report. The quenching behavior of the SERS of these adsorbates by the deposited Pb is different for each adsorbate. The SERS of SCN** minus is quenched rapidly by very small amounts of underpotentially deposited Pb, while the quenching for Br** minus and Cl** minus is less drastic. These results are interpreted in terms of a charge-transfer model for SERS that is sensitive to the changes in work function at microscopic sites upon Pb deposition.",
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