Reactivity of T-Nb2O5 or H-Nb2O5 towards V2O5. Synthesis in the solid state and properties of V4Nb18O55

• Authors: Piotr Tabero , Elzbieta Filipek , Mateusz Piz
• Languages of publication: EN

Abstracts

EN

The IR spectrum of V4Nb18O55 has been compared with the IR spectra of selected niobates of known structures to show structural relations between these compounds. This comparison shows that V4Nb18O55 has crystal structure related to T-Nb2O5, W16Nb18O94 and Ba2NaNb5O15. On the other hand, reaction between V2O5 and H-Nb2O5 yields a solid solution of V2O5 in VNb9O25. It has been proposed two models of synthesized solid solution with formulas V1+xNb9-xO25 or V1+xNb9O25+5x/2.Independently of Nb2O5 polymorph, used for synthesis, the metastable compound VNbO5 cannot be synthesized in the solid state below 650°C [...]

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 2
• Pages: 222-227

Dates

published

1 - 6 - 2009

online

9 - 4 - 2009

Contributors

author

Piotr Tabero

• Department of Inorganic and Analytical Chemistry, Szczecin University of Technology, 71-065, Szczecin, Poland

author

Elzbieta Filipek

• Department of Inorganic and Analytical Chemistry, Szczecin University of Technology, 71-065, Szczecin, Poland

author

Mateusz Piz

• Department of Inorganic and Analytical Chemistry, Szczecin University of Technology, 71-065, Szczecin, Poland

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Identifiers

DOI

10.2478/s11532-009-0001-7