Obtaining Surface‐Enhanced Raman Spectra from the Passive Film on Iron

摘要: This paper reports on surface-enhanced Raman spectra (SERS) obtained from an iron electrode that contains its surface a discontinuous layer of silver. The mechanism enhancement this system has been explored through systematic study the time stability and potential reversability SERS as well relation between amount silver deposited intensity SERS. It is concluded local electromagnetic field dominant contributor to in system. also shown anodic polarization characteristics ion are unaffected by presence layer. Comparisons situ ex situ, semi have indicated importance characterizing passive film techniques. limitation possible extensions technique studies passivity discussed.