|
Dielectrics
The effect of ultradispersion on the chemical shifts of the X-ray $K$ lines in copper and manganese oxides
A. A. Naberezhnova, A. E. Sovestnovb, D. A. Kurdyukova, È. V. Fominb, A. V. Fokina a Ioffe Institute, St. Petersburg
b B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
Abstract:
The results of study of shifts of X-ray $K_\alpha$ and $K_\beta$ lines of manganese and copper obtained for CuO, MnO, Mn$_{3}$O$_{4}$ and MnO$_{2}$ oxide nanoparticles (relative to the corresponding massive materials) are presented. Oxide nanoparticles were synthesized in the pores of borosilicate glasses with an average pore diameter of 7 $\pm$ 1 nm from the corresponding nitrates introduced into the pores by capillary impregnation. It was found, that for nanocomposites with CuO and Mn$_{3}$O$_{4}$ there is a small (about $\sim$ 0.1 el./atom) increase in the role of 3$d$ electrons in the chemical bonds. On the contrary, for nanocomposites with MnO$_{2}$ the role of these electrons has an opposite trend.
Keywords:
nanocomposite materials, porous matrices, electron subsystem, X-ray spectroscopy, copper and manganese oxides.
Received: 02.06.2020 Revised: 02.06.2020 Accepted: 04.06.2020
Citation:
A. A. Naberezhnov, A. E. Sovestnov, D. A. Kurdyukov, È. V. Fomin, A. V. Fokin, “The effect of ultradispersion on the chemical shifts of the X-ray $K$ lines in copper and manganese oxides”, Fizika Tverdogo Tela, 62:10 (2020), 1637–1645; Phys. Solid State, 62:10 (2020), 1836–1844
Linking options:
https://www.mathnet.ru/eng/ftt8284 https://www.mathnet.ru/eng/ftt/v62/i10/p1637
|
Statistics & downloads: |
Abstract page: | 36 | Full-text PDF : | 5 |
|