Peculiarities of the Vanadium Oxidation Degree Determination by XPS Method in Nanodispersed Oxide Systems

An analysis of our data and literature data on the vanadium oxidation degree (n) by the XPS method in its oxide systems was performed. It was shown that the equation proposed in the literature allows one to correctly estimate this value for microsized systems, while there is a significant difference...

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Veröffentlicht in:	Theoretical and experimental chemistry 2021-05, Vol.57 (2), p.126-133
Hauptverfasser:	Bacherikova, I. V., Zazhigalov, V. O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analysis Chemistry Chemistry and Materials Science Chemistry/Food Science Methods Oxidation Oxidation-reduction reaction Vanadium X-ray spectroscopy
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	An analysis of our data and literature data on the vanadium oxidation degree (n) by the XPS method in its oxide systems was performed. It was shown that the equation proposed in the literature allows one to correctly estimate this value for microsized systems, while there is a significant difference (up to n ± 0.3) between the actual and calculated values for the nanosized systems. A modified equation is proposed that allows one to estimate the vanadium oxidation degree in nanodispersed systems with higher accuracy (up to n ± 0.15).
ISSN:	0040-5760 1573-935X
DOI:	10.1007/s11237-021-09681-7