Surface enhanced Raman scattering in a nonaqueous electrochemical cell: Pyridine, benzoic acid, and nitrobenzene in methanol
1985; Elsevier BV; Volume: 158; Issue: 1-3 Linguagem: Inglês
10.1016/0039-6028(85)90303-6
ISSN1879-2758
AutoresGyu-Seung Shin, Jong-Jean Kim,
Tópico(s)Electrochemical Analysis and Applications
ResumoWe have studied SERS on the following systems for comparison between aqueous and nonaqueous media: (1a) 0.05M pyridine2×10−3fMKCImethanol, (1b) 0.05M pyridine2×10−3M KClwater, (2a) 0.05M henzoic acid2×10−3M KCImethanol, (2b) 5×10−3M benzoic acid2×10−3M KClwater, and (3) 0.05M nitrobenzene2×10−3M KCImethanol. As already reported, the surface adsorbed SERS species seem to be the same, irrespective of whether the solvent is water or methanol. However, considerable differences are found in small details between the nonaqueous and the aqueous SERS spectra, the significance of which is discussed in terms of both electrochemistry and SERS. For nitrobenzene, the observed SERS spectra did not show the Raman lines of the original nitrobenzene but some reduction products of nitrobenzene, probably aniline and phenylhydroxylamine.
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