Comparative study of phases forming in niobium-antimony oxides system upon high temperature treatment and high-energy ball milling / P. Dulian, M. Piz, E. Filipek, K. Wieczorek-Ciurowa // Acta Physica ... więcej

Comparative study of phases forming in niobium-antimony oxides system upon high temperature treatment and high-energy ball milling / P. Dulian, M. Piz, E. Filipek, K. Wieczorek-Ciurowa // Acta Physica Polonica. A, General Physics, Solid State Physics, Applied Physics [Dokument elektroniczny]. – 2014, Vol. 126, No. 4, s. 938-942 : fot., wykr. – Tryb dostępu: http://przyrbwn.icm.edu.pl/APP/PDF/126/a126z4p16.pdf. – Bibliogr. 23 poz., Streszcz. ang. – Tyt. numeru: Proceedings of the 8th International Conference on Mechanochemistry and Mechanical Alloying, Kraków, Poland, June 22-26, 2014. – doi: 10.12693/APhysPolA.126.938. – ISSN 0587-4246

The compound SbNbO4 that is formed in a ternary system of Nb-Sb-O has been obtained for the first time by high-energy ball milling of the equimolar mixture of oxides Sb2O3/Nb2O5 in argon atmosphere. This ... więcej

The compound SbNbO4 that is formed in a ternary system of Nb-Sb-O has been obtained for the first time by high-energy ball milling of the equimolar mixture of oxides Sb2O3/Nb2O5 in argon atmosphere. This compound was characterised by X-ray diffraction, differential thermal analysis- thermal gravimetry, infrared, and scanning electron microscopy methods and its properties were compared with those of SbNbO4 also obtained as a result of high-temperature reaction between the same oxides and also in argon atmosphere. As shown by differential thermal analysis results, irrespective of the method of synthesis, SbNbO4 is stable in argon atmosphere up to ≈ 1125°C and in air up to ≈ 800°C. The compound can be applied as a photocatalyst in the reaction of producing hydrogen from water.