Competitive adsorption on a polycrystalline Ag electrode was studied for 2-and 4-methylpyridine and pyridme at -0.4 to -0.7 V versus SCE by SERS using the in situ solution exchange method. The steric effect of the CH, group in the 2-position was clearly shown along with the electronic effect of each
A study of the competitive adsorption of pyridine and monosubstituted pyridines on a silver electrode by the sers method
β Scribed by Yasunari Ikezawa; Hiroshi Saito; Koji Matsui; Genjiro Toda
- Publisher
- Elsevier Science
- Year
- 1986
- Weight
- 47 KB
- Volume
- 176
- Category
- Article
- ISSN
- 0167-2584
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## Abstract The adsorption of pyridine (py) on Fe, Co, Ni and Ag electrodes was studied using surfaceβenhanced Raman scattering (SERS) to gain insight into the nature of the adsorbed species. The wavenumber values and relative intensities of the SERS bands were compared to the normal Raman spectrum
The surface geometries of the three isomeric pyridinecarboxylic acids (PCA) (picohnic acid (2-PCA), nicotinic acid (3-PCA) and isonicotinic acid (CPCA)) on polycrystalline silver electrodes were deduced from their SER spectra. Special emphasis was thereby placed on the variation of the adsorption be