Composition and Electronic Structure of La₂O₃/CNFs@C Core-Shell Nanoparticles with Variable Oxygen Content.

ABSTRACT: La₂O₃ nanoparticles stabilized on carbon nanoflake (CNF) matrix were synthesized and graphitized to produce core-shell structures La₂O₃/CNFs@C. Further oxidation of these structures by nitric acid vapors for 1, 3 or 6 h was performed, and surface-oxidized particles La₂O₃/CNFs@C_x (x = 1, 3, 6) were produced. Bulk and surface compositions of La₂O₃/CNFs@C and La₂O₃/CNFs@C_x were investigated by thermogravimetric analysis and X-ray photoelectron spectroscopy. With increasing the duration of oxidation, the oxygen and La₂O₃ content in the La₂O₃/CNFs@C_x samples increased. The electronic structures of samples were assessed by electron paramagne

SUBMITTER: Suslova EV 

PROVIDER: S-EPMC10674885 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature