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Title: Near-infrared surface-enhanced Raman spectroscopy. Part I: Copper and gold electrodes

Journal Article · · Appl. Spectrosc.; (United States)

Surface-enhanced Raman spectra of pyridine on copper and gold electrodesin the near-infrared were obtained with a Fourier transform Ramanspectrometer. Surface-enhanced Raman spectra were observed forpyridine adsorbed on copper and gold electrodes while a Nd:YAG laser(1.064 ..mu..m) was used for excitation. Good-quality spectra were recordedfor 0.08 mM pyridine on a copper electrode with a single oxidation-reductioncycle, whereas for a gold electrode, several ORCs were necessary.A very intense low-energy Raman band was observed on bothmetals at positive potentials, which may be due to a metal-oxidevibrational mode.

Research Organization:
Environmental Sciences Division, Lawrence Livermore National Laboratory, Livermore, California 94550 (S.M.A., L.F.K.); and Department of Chemistry BG-10, University of Washington, Seattle, Washington 98195 (D.D.A., L.T.L., D.E.H.)(US)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6257376
Journal Information:
Appl. Spectrosc.; (United States), Vol. 42:8
Country of Publication:
United States
Language:
English