Abstract
Adsorption of pyridine and N‐ethylpyridinium bromide on iron electrodeposited on a silver electrode in atpH 3.5 was studied by surface enhanced Raman scattering (SERS) spectroscopy. After oxidation‐reduction cycles for the silver electrode, iron was cathodically deposited on the electrode in plus solution at −1.0V vs. SCE. The SERS spectrum of pyridine adsorbed on the deposited iron in at pH 3.5 differed from that on the silver electrode. Since a band at 240 cm−1 in the SERS spectrum of pyridine on iron was assigned to N‒Fe bond, it was concluded that the pyridine molecule was chemisorbed on the iron surface by the formation of nitrogen‐iron coordinated bond. The SERS spectra of pyridine on iron showed that the structure of the adsorbed molecule was independent of the electrode potentials at which the anodic and cathodic reactions of iron corrosion occurred. Because the SERS spectrum of N‐ethylpyridinium bromide adsorbed on iron agreed virtually with that on silver and Raman spectrum of this compound, quaternary cation was confirmed as being electrosorbed on the iron surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
