Redox reactions involving Ce3+ cations and FeO42– anions and the synthesis of Ce1.1FeOx·nH2O nanolayers by the SILD method

Resumo

Conditions for the synthesis of nanolayers of cerium and iron binary oxides by the successive ionic layer deposition (SILD) method based on consecutive and repeated realization of redox reactions in a layer of adsorbed Ce³⁺ cations and FeO₄^2– anions on a substrate surface were considered. The synthesized layers were studied by scanning electron microscopy, X-ray spectral microanalysis, IR-Fourier and X-ray photoelectron spectroscopy, and also by X-ray diffraction methods. Under conditions of the synthesis layers of the hydrated amorphous oxide Ce_1.1FeO_x·nH₂O containing Ce(IV) and Fe(III) atoms in the ratio 1.1 : 1.0 are formed on the surface.