Characterization of niobium(v) oxide received from different sources

Bożena Pilarek , Aleksandra Pelczarska , Irena Szczygieł

Abstract

The characterization of three commercial powders of niobium(V) oxide received from two producers was made. The thermal behavior of Nb2O5 up to melting point and its microstructure were studied using X-ray powder diffraction, thermoanalytical methods (DSC/TG), infrared spectroscopy (IR) and scanning microscopy. Analysis of the obtained results revealed that the starting structure of niobium(V) oxide and its thermal behavior depend on the origin of niobia. Depending on the origin of the powder and of its thermal treatment, three polymorphs of Nb2O5 can be observed. Sintering of powders above 1200 C results in the formation of single phase, H-Nb2O5.
Author Bożena Pilarek (EaE / IChaFT / DNCh)
Bożena Pilarek,,
- Department of Non-organic Chemistry
, Aleksandra Pelczarska (EaE / IChaFT / DNCh)
Aleksandra Pelczarska,,
- Department of Non-organic Chemistry
, Irena Szczygieł (EaE / IChaFT / DNCh)
Irena Szczygieł,,
- Department of Non-organic Chemistry
Journal seriesJournal of Thermal Analysis and Calorimetry, ISSN 1388-6150, e-ISSN 1572-8943, (A 20 pkt)
Issue year2017
Vol130
No1
Pages77-83
Publication size in sheets0.5
Keywords in EnglishNiobium(V) oxide, Polymorphism, Microstructure
ASJC Classification1606 Physical and Theoretical Chemistry; 3104 Condensed Matter Physics
DOIDOI:10.1007/s10973-017-6300-x
Languageen angielski
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Pilarek_B_Pelczarska_A_J_Szczygiel_I_Characterization of niobium(v) oxide received.pdf 1,05 MB
Score (nominal)20
Score sourcejournalList
Publication indicators Scopus Citations = 4; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.073; WoS Impact Factor: 2017 = 2.209 (2) - 2017=1.917 (5)
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