Dynamics of the Oxygen Adsorption Process on the Surface of Aluminum–Cerium Alloy in Polycrystalline and Amorphous States
| Autor: | A. I. Kiselev, Vitaliy G. Shevchenko, A. V. Konyukova |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
020209 energy Organic Chemistry Alloy Metals and Alloys chemistry.chemical_element Thermodynamics 02 engineering and technology Electronic structure engineering.material 021001 nanoscience & nanotechnology Surfaces Coatings and Films Amorphous solid Cerium Adsorption chemistry Aluminium 0202 electrical engineering electronic engineering information engineering Materials Chemistry engineering Molecule Crystallite 0210 nano-technology |
| Zdroj: | Protection of Metals and Physical Chemistry of Surfaces. 56:252-255 |
| ISSN: | 2070-206X 2070-2051 |
| DOI: | 10.1134/s2070205120020136 |
| Popis: | Based on the concept of collective vibrations of ions in the bulk of metal systems, the frequency of vibrations of an oxygen molecule on the aluminum–cerium alloy surface has been evaluated. Numerical estimation of the physical adsorption isobar has been carried out in accordance with the Henry law using these data and the heats of oxygen adsorption on the surface of this alloy in amorphous and polycrystalline states obtained on the basis of optical experiment data. It has been shown that changes in the alloy’s electronic structure upon splitting of the conduction band for the amorphous state has a significant effect on the qualitative characteristics of the adsorption process. |
| Databáze: | OpenAIRE |
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