Comparative studies in subsolidus areas of ternary oxide systems PbO–V2O5–In2O3 and PbO–V2O5–Fe2O3

Anna Blonska-Tabero,Monika Bosacka

doi:10.1007/s10973-013-2996-4

Anna Blonska-Tabero, Monika Bosacka

Open Access

https://doi.org/10.1007/s10973-013-2996-4

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Abstract

Thermal stability of PbO was studied. Reactivity of oxides in the systems PbO-M2O3 (M = In, Fe) was investigated up to 650 C. Using the DTA and XRD meth- ods, parts of investigated ternary oxide systems, labelled by compounds: V2O5 ,P b 8V2O13 and M2O3 (M = In, Fe), have been divided into partial ternary systems. IR spectra of compounds Pb2MV3O11 (M = In, Fe) have been compared.

Highlights

The ternary oxide systems PbO–V2O5–M2O3 are worthy of study because their components as well as compounds forming in their side systems have found a lot of applications, e.g. as catalysts in different processes [1,2,3,4], as electrode materials [5] or as glasses with relatively high electrical conductivity and high thermal stability [6, 7]
The presented study was focused on determining the range of co-existence of these new phases with other compounds occurring in the systems PbO–V2O5–M2O3 (M = In, Fe) and on checking whether any other phases, unknown hitherto, are formed in these systems, involving all their components
The aim of the research has been realized by studies on the phase equilibria in the subsolidus areas of the ternary oxide systems in the whole concentration range of their components

Summary

Introduction

The presented study was focused on determining the range of co-existence of these new phases with other compounds occurring in the systems PbO–V2O5–M2O3 (M = In, Fe) and on checking whether any other phases, unknown hitherto, are formed in these systems, involving all their components. The aim of the research has been realized by studies on the phase equilibria in the subsolidus areas of the ternary oxide systems in the whole concentration range of their components. These results are very important to study both possibility and limitation of the practical application of the obtained new multicomponent vanadates. The IR spectra of the Pb2InV3O11 and Pb2FeV3O11 compounds were obtained with the use of the spectrometer Specord M 80 (Carl Zeiss, Germany), applying the technique of pressing pastilles of the investigated sample with KBr in a ratio 1:300 by mass

Results and discussion

Conclusions