Structural and morphological characteristics of CuMe2O4 spinels in reductive atmosphere depending on the chemical nature of Mе(III) cations
| Autor: | Vladimir I. Zaikovskii, I.I. Simentsova, Natalia V. Shtertser, Tamara M. Yurieva, T.P. Minyukova, Lyudmila M. Plyasova |
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| Rok vydání: | 2018 |
| Předmět: |
Chemistry
Mechanical Engineering Inorganic chemistry Oxide 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Atmosphere Crystallography chemistry.chemical_compound Mechanics of Materials law General Materials Science Calcination 0210 nano-technology |
| Zdroj: | Materials Research Bulletin. 99:314-323 |
| ISSN: | 0025-5408 |
| Popis: | Mixed copper-containing spinel-type compounds CuCr 1 Fe 1 O 4 , CuCr 1 Al 1 O 4 and CuFe 1 Al 1 O 4 were studied by means of XRD and HREM after calcination at 650 °C in the air and treatments in a hydrogen-containing medium at 270–210 °C (H 2 :He = 5:95; H 2 :CO:H 2 O = 50:7:43). The effect of the chemical nature of Mе 3+ cation on the structural-morphological characteristics of oxide systems and their transformations in a reducing medium was investigated. It was shown that the nature of Me 3+ cation makes it possible to control the structural characteristics, particularly in the reduced state. |
| Databáze: | OpenAIRE |
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