Surface-Enhanced Raman Scattering and Density Functional Theory Study of 4-Nitrobenzonitrile Adsorbed on Ag and Ag/Pd Nanoparticles
| Autor: | Adriano Bigotto, Maurizio Muniz-Miranda, Barbara Pergolese |
|---|---|
| Přispěvatelé: | M., MUNIZ MIRANDA, B., Pergolese, Bigotto, Adriano |
| Rok vydání: | 2008 |
| Předmět: |
Materials science
Inorganic chemistry chemistry.chemical_element Silver nanoparticle Surfaces Coatings and Films Electronic Optical and Magnetic Materials Benzonitrile chemistry.chemical_compound symbols.namesake General Energy Adsorption chemistry symbols Physical chemistry Reactivity (chemistry) Density functional theory Physical and Theoretical Chemistry Spectroscopy Raman scattering Palladium |
| Zdroj: | The Journal of Physical Chemistry C. 112:6988-6992 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp711745t |
| Popis: | The adsorption and reactivity of 4-nitrobenzonitrile on Ag and Ag/Pd nanoparticles immobilized on quartz surfaces have been studied by means of surface-enhanced Raman scattering (SERS) spectroscopy. It has been found that upon adsorption on Ag/Pd nanoparticles this compound undergoes reduction of the nitrogroup to form 4,4‘-azobis(benzonitrile). This process is due to the catalytic efficiency of the palladium clusters present on the surface of the silver nanoparticles. SERS spectra obtained from pure Ag and from Ag/Pd substrates have been assigned by mean of density functional theory calculations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|