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Thermal Stability of the Oxygen Ion Conductor Bicuvox.10 In Different Gaseous Atmospheres

Published online by Cambridge University Press:  15 February 2011

Manfred W.Breiter ,
Karl Reiselhuber  and
Gertrude Dorner
Manfred W.Breiter
Affiliation:
TU Wien,Institute of Technical Electrochemistry, 9 Getreidemarkt, 1060 Wien, Austria
Karl Reiselhuber
Affiliation:
TU Wien,Institute of Technical Electrochemistry, 9 Getreidemarkt, 1060 Wien, Austria
Gertrude Dorner
Affiliation:
TU Wien,Institute of Technical Electrochemistry, 9 Getreidemarkt, 1060 Wien, Austria
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Abstract

A study of the thermal stability of the oxygen ion conductor BICUVOX.10 was carried out on small pieces of the polycrystalline material by combined TGA and DTA measurements in air, nitrogen, oxygen and helium. The TGA measurements demonstrated that the weight change was less than 0.1% in the different gases. The DTA curves were practically the same. There is evidence for the occurence of a phase change. TGA curves were also taken on BICUVOX.10, the parent compound Bi4V2O11, and the oxides CuO, B2o2, V2O5. under hydrogen. The comparison of the reduction curves shows that BICUVOX.10 is stable up to about 550C with respect to a direct reduction by molecular hydrogen.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 393: Symposium W – Materials for Electrochemical Energy Storage and Conversion , 1995 , 37
Copyright
Copyright © Materials Research Society 1995

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References

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