✦ LIBER ✦
Effects of underpotentially deposited TI and Pb submonolayers on the surface-enhanced Raman scattering (SERS) from pyridine at Ag electrodes
✍ Scribed by T. Watanabe; N. Yanagihara; K. Honda; B. Pettinger; L. Moerl
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 642 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
SERS from pyridine on an
Ag clccrrode is almost complcrely quenched by underpotential deposition of Tl 10 a surface covemgc of J 3%. Removal of Tl by anodic stripping does not restore the original SERS intensity. These results susest that only a small fraction of adsorbed pyridine molecules is SERS active, and T1 is specifically deposited on such a SERS active site, x%bich then undergoes irreversible destruction. Pb appears to be non-sped%ally deposited on the Xg surface, but exhibits a similar irreversible quenching of SERS.