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Surface‐enhanced Raman scattering (SERS) at Copper(I) oxide
Author(s) -
Kudelski A.,
Grochala W.,
JanikCzachor M.,
Bukowska J.,
Szummer A.,
Dolata M.
Publication year - 1998
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199805)29:5<431::aid-jrs260>3.0.co;2-s
Subject(s) - pyridinium , raman scattering , copper , chemistry , raman spectroscopy , electrode , pyridine , electrochemistry , inorganic chemistry , oxide , adsorption , copper oxide , cathodic protection , hydrosol , molecule , photochemistry , analytical chemistry (journal) , optics , organic chemistry , physics
Surface‐enhanced Raman scattering spectra of pyridine at a copper(I) oxide hydrosol and at Cu 2 O‐covered copper electrode produced by ‘oscillating reaction roughening’ are reported. It is shown that on such surfaces pyridine molecules adsorb as pyridinium cations. The ‘oscillating reaction’ pretreatment yields a passivated Cu surface which does not undergo any reduction during the cathodic scan, producing a SERS spectrum of pyridinium cations even after decreasing the electrode potential to strongly negative values. © 1998 John Wiley & Sons, Ltd.