Abstract: New binary oxide Mg–M–O (M=Y, La, Ce) systems are obtained by co-precipitation and characterized by adsorption methods, X-ray diffraction method (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy of adsorbed probe molecules (CO and CDCl3). It is shown that Mg–Y–O systems after calcination at 450–750 °C represent the physical mixtures of MgO and Y2O3, while the components of Mg–La(Ce)–O systems interact to form La2MgOx and (Ce,Mg)O2 solid solutions, respectively. From XPS data, the surface of the binary systems is enriched with lanthanide ions. Addition of ≈5 mol% M2O3 to MgO results in an increase in concentrations of strong and weak Lewis acidic sites, the content of the latter being much higher and changing in the series: MgO<Mg–Ce–O<Mg–La–O<Mg–Y–O. At the same time basic sites become stronger in the binary systems but their total content decreases in comparison to that in individual MgO. Mg–M–O samples containing ≈5 mol% M2O3 are highly-dispersed and characterized by bimodal porous texture.

Cite: Ivanova A.S. , Moroz B.L. , Moroz E.M. , Larichev Y.V. , Paukshtis E.A. , Bukhtiyarov V.I.
New Binary Systems Mg–M–O (M=Y, La, Ce): Synthesis and Physico-Chemical Characterization
Journal of Solid State Chemistry. 2005. V.178. N11. P.3265-3274. DOI: 10.1016/j.jssc.2005.08.001 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	May 31, 2005
Accepted:	Aug 4, 2005
Published online:	Sep 12, 2005
Published print:	Nov 1, 2005

Identifiers:

Web of science:	WOS:000233894400007
Scopus:	2-s2.0-27744556194
Elibrary:	13498049
Chemical Abstracts:	2005:1203346
Chemical Abstracts (print):	144:112402
OpenAlex:	W2024871693

Citing:

DB	Citing
Web of science	33
Scopus	32
Elibrary	31
OpenAlex	36

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