An X-ray absorption spectroscopy study of FeCo alloy nanoparticles embedded in ordered cubic mesoporous silica (SBA-16)
| Autor: | Gabriele Navarra, Daniela Carta, Anna Corrias |
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| Rok vydání: | 2011 |
| Předmět: |
X-ray absorption spectroscopy
Materials science Nanocomposite Absorption spectroscopy Extended X-ray absorption fine structure Alloy Inorganic chemistry Oxide Nanoparticle Mesoporous silica engineering.material Condensed Matter Physics Electronic Optical and Magnetic Materials chemistry.chemical_compound Chemical engineering chemistry Materials Chemistry Ceramics and Composites engineering |
| Zdroj: | Journal of Non-Crystalline Solids. 357:2611-2614 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2011.02.053 |
| Popis: | Nanocomposites containing FeCo alloy nanoparticles dispersed in a highly ordered cubic mesoporous silica (SBA-16) matrix were prepared using two different synthetic methods, co-precipitation and impregnation. Extended X-ray Absorption Spectroscopy (EXAFS) technique at both Fe and Co K-edges was used to investigate the structure of FeCo nanoparticles and the presence of additional disordered oxide phases. EXAFS technique gives evidence of differences in the oxidation degree of the FeCo nanoparticles depending on the synthetic method used. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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