Raman spectra of pyridine adsorbed on silver (100) and (111) electrode surfaces

Autor:	U. Wenning, Bruno Pettinger
Rok vydání:	1978
Předmět:	Chemistry Analytical chemistry General Physics and Astronomy Spectral line Condensed Matter::Materials Science symbols.namesake chemistry.chemical_compound Adsorption Raman band Electrode Pyridine symbols Surface roughness Crystallite Physical and Theoretical Chemistry Raman spectroscopy
Zdroj:	Chemical Physics Letters. 56:253-257
ISSN:	0009-2614
DOI:	10.1016/0009-2614(78)80233-4
Popis:	Extremely intense Raman signals from pyridine adsorbed on single crystals with (111) and (100) orientation and polycrystalline silver electrodes are reported. To obtain these intense Raman signals with an enhancement factor of 10 5 only one carefully controlled oxidation/reduction cycle is necessary. This does not lead to an increase in surface roughness nor to a change in crystalline surface orientation. Different orientations of the silver electrode give characteristic surface adsorption Raman spectra. These differences appear in frequency positions, relative intensities and halfwidths of the Raman bands, as well as in the potential dependences of these spectroscopic data. The observed spectrum is assumed to be the sum over the spectra for the different adsorption sites.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ae48e5cb5a2937c23f844134ced58f6 https://doi.org/10.1016/0009-2614(78)80233-4 Zobrazit plný text záznamu