Nanostructured phase formation in CeO2/LaAlO3 and CeO2/(Ni-W) prepared by deposition from metalorganic solutions
| Autor: | Yu. Ya. Tomashpolsky, Yu. V. Borisov, S. Yu. Kholopova, L. F. Rybakova, N. V. Sadovskaya |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Cerium oxide
Nanostructure Materials science Scanning electron microscope General Chemical Engineering Metals and Alloys Analytical chemistry Dip-coating Inorganic Chemistry Barrier layer chemistry.chemical_compound chemistry Electron diffraction Lanthanum aluminate Materials Chemistry Texture (crystalline) |
| Zdroj: | Inorganic Materials. 47:1367-1371 |
| ISSN: | 1608-3172 0020-1685 |
| Popis: | We have studied nanoscale structural evolution processes and phase formation in barrier cerium oxide layers grown from methacrylate solutions on lanthanum aluminate and a nickel-tungsten tape by dip coating. The layers were characterized by atomic force microscopy, scanning electron microscopy, precision electron diffraction, X-ray microanalysis, and X-ray diffraction (including texture analysis). We have investigated nanostructured morphological forms of buffer cerium oxide layers in all synthesis steps: liquid-phase, pyrolytic, and crystalline. We have established a granular character of the nanostructure and determined the type of orientation of the films: 〈111〉 texture with a 〈200〉 additional orientation. Optimal conditions for the synthesis of a barrier layer several tens of nanometers in thickness are proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|