Composite electrodes for proton conducting electrolyte of CaZr0.95Sc0.05O3 – δ

Composite electrodes for proton conducting electrolyte of CaZr0.95Sc0.05O3 – δ A new method of obtaining gastight ceramic based on CaZr0.95Sc0.05O3 – δ is presented. The microstructure and electric properties of the obtained samples, same as the behavior of composite electrodes in contact with this electrolyte, are studied for application of the obtained results in the technology of formation of electrochemical devices. The design of bilayer electrodes is suggested, in which the materials tested as the functional layer were layered lanthanum nickelate La2NiO4 + δ and substituted lanthanum nickelate La1.7Ca(Sr,Ba)0.3NiO4 + δ in combination with the electrolyte components of Ce0.8Sm0.2O2 – δ and BaCe0.89Gd0.1Cu0.01O3 – δ. The collector layer used was lanthanum nickelate–ferrite LaNi0.6Fe0.4O3 – δ and manganite La0.6Sr0.4MnO3 – δ that are characterized by high electron conductivity, low layer resistance and are close by their values of coefficient of linear thermal expansion to the materials of functional layers. Electrochemical activity of the obtained electrodes are compared with the characteristics of composite electrodes based on lanthanum ferrite–cobaltite La0.6Sr0.4Fe0.8Co0.2O3 – δ and deficient lanthanum manganite La0.75Sr0.2MnO3 – δ. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Electrochemistry Springer Journals

Composite electrodes for proton conducting electrolyte of CaZr0.95Sc0.05O3 – δ

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Publisher
Pleiades Publishing
Copyright
Copyright © 2017 by Pleiades Publishing, Ltd.
Subject
Chemistry; Electrochemistry; Physical Chemistry
ISSN
1023-1935
eISSN
1608-3342
D.O.I.
10.1134/S1023193517070096
Publisher site
See Article on Publisher Site

Abstract

A new method of obtaining gastight ceramic based on CaZr0.95Sc0.05O3 – δ is presented. The microstructure and electric properties of the obtained samples, same as the behavior of composite electrodes in contact with this electrolyte, are studied for application of the obtained results in the technology of formation of electrochemical devices. The design of bilayer electrodes is suggested, in which the materials tested as the functional layer were layered lanthanum nickelate La2NiO4 + δ and substituted lanthanum nickelate La1.7Ca(Sr,Ba)0.3NiO4 + δ in combination with the electrolyte components of Ce0.8Sm0.2O2 – δ and BaCe0.89Gd0.1Cu0.01O3 – δ. The collector layer used was lanthanum nickelate–ferrite LaNi0.6Fe0.4O3 – δ and manganite La0.6Sr0.4MnO3 – δ that are characterized by high electron conductivity, low layer resistance and are close by their values of coefficient of linear thermal expansion to the materials of functional layers. Electrochemical activity of the obtained electrodes are compared with the characteristics of composite electrodes based on lanthanum ferrite–cobaltite La0.6Sr0.4Fe0.8Co0.2O3 – δ and deficient lanthanum manganite La0.75Sr0.2MnO3 – δ.

Journal

Russian Journal of ElectrochemistrySpringer Journals

Published: Aug 4, 2017

References

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