X-Ray Photoelectron Study of the Formation of the Chemical Bond and the Atomic Magnetic Moment in Nickel-Carbon Nanocomposites Modified by d-Metal Oxides.

Autor: Shabanova, I. N., Kodolov, V. I., Terebova, N. S.
Zdroj: Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; 2020, Vol. 14 Issue 6, p1139-1143, 5p
Abstrakt: X-ray photoelectron spectroscopy is used to study the modification of Ni/C nickel-carbon nanocomposites with oxides (NiO, CuO, and Fe2O3) in the ratio of 0.5–1.0. Depending on the type of modifier used and its content, the magnetic moment of Ni atoms changes in the nanocomposite, i.e., during the redox process, the nanocomposite structure changes and the interaction between the carbon skeleton and the modifier metal is enhanced. In the presence of electron acceptors, the paired d electrons of the nanocomposite metal become unpaired and move to higher orbitals. This is indicative of self-organization processes in nanostructures, which leads to an increase in the atomic magnetic moment of the metal. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz: