2015
DOI: 10.1016/j.susc.2014.05.023
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Spectroelectrochemical behavior of 4-aminobenzenethiol on nanostructured platinum and silver electrodes

Abstract: The adsorption of 4-aminobenzenethiol (4-ABT) on Ag and Pt nanoparticles is studied by spectroelectrochemical means (cyclic voltammetry, Surface-Enhanced Raman Spectroscopy (SERS) and Surface-Enhanced Infrared Reflection Absorption Spectroscopy (SEIRAS). Similar SERS spectra are obtained when 4-ABT is adsorbed on platinum and silver nanostructured substrates. In addition, unless a low power density of the laser is used, these spectra show, both under open circuit conditions and when applying electrode potentia… Show more

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Cited by 8 publications
(25 citation statements)
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“…An increase of the intensity of the bands at 1629 and 1106 cm -1 and the upward shift and broadening of the band initially at 1264 cm -1 are the main changes observed in the spectra collected at potentials above -0.90 V. The potential-dependent behaviour of the spectra in Figure 4 is rather similar to that reported for 4-ABT adsorbed on silver. 23 In this latter case, an additional small band was observed at ca. 1200 cm -1 which is obscured by the silicon feature at 1216 cm -1 .…”
Section: Discussionmentioning
confidence: 76%
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“…An increase of the intensity of the bands at 1629 and 1106 cm -1 and the upward shift and broadening of the band initially at 1264 cm -1 are the main changes observed in the spectra collected at potentials above -0.90 V. The potential-dependent behaviour of the spectra in Figure 4 is rather similar to that reported for 4-ABT adsorbed on silver. 23 In this latter case, an additional small band was observed at ca. 1200 cm -1 which is obscured by the silicon feature at 1216 cm -1 .…”
Section: Discussionmentioning
confidence: 76%
“…23 DFT calculations show that there are four bands that appear at 1135, 1388, 1422 and 1579 cm -1 for adsorbed 4,4'-DMAB on Cu which are absent for adsorbed 4-ABT likewise on Cu, and that a similar lack is also observed not only when the experimental Raman but also the SERS spectra are compared (see Tables 1 and 2). …”
Section: Discussionmentioning
confidence: 83%
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