Synthesis of an anode material based on mixed calcium vanadatomolybdate and its stability in contact with solid electrolytes

Synthesis of an anode material based on mixed calcium vanadatomolybdate and its stability in... Mixed calcium vanadatomolybdate CaV0.5Mo0.5O3 was synthesized, and its phase composition was studied in relation to the annealing temperature in the interval 600–1150°C. The heat treatment at 1150°C leads to the formation of a single-phase product of perovskite structure. Transformations in the systems consisting of CaV0.5Mo0.5O3 and solid electrolytes 0.9ZrO2-0.1Y2O3, BaZr0.95Y0.05O3, and La0.88Sr0.12Ga0.82Mg0.18O2.85 (weight ratio 1: 1) in the temperature interval 900–1250°C were studied using X-ray diffraction analysis. The temperatures at which calcium vanadatomolybdate starts to react with the electrolyte materials are considerably higher than the operation temperatures of the solid oxide fuel cells. Recommendations are formulated on the prospects for using CaV0.5Mo0.5O3 as an anode material for solid oxide fuel cells, primarily for those with the electrolyte based on lanthanum gallate. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Synthesis of an anode material based on mixed calcium vanadatomolybdate and its stability in contact with solid electrolytes

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427215040266
Publisher site
See Article on Publisher Site

Abstract

Mixed calcium vanadatomolybdate CaV0.5Mo0.5O3 was synthesized, and its phase composition was studied in relation to the annealing temperature in the interval 600–1150°C. The heat treatment at 1150°C leads to the formation of a single-phase product of perovskite structure. Transformations in the systems consisting of CaV0.5Mo0.5O3 and solid electrolytes 0.9ZrO2-0.1Y2O3, BaZr0.95Y0.05O3, and La0.88Sr0.12Ga0.82Mg0.18O2.85 (weight ratio 1: 1) in the temperature interval 900–1250°C were studied using X-ray diffraction analysis. The temperatures at which calcium vanadatomolybdate starts to react with the electrolyte materials are considerably higher than the operation temperatures of the solid oxide fuel cells. Recommendations are formulated on the prospects for using CaV0.5Mo0.5O3 as an anode material for solid oxide fuel cells, primarily for those with the electrolyte based on lanthanum gallate.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Jul 14, 2015

References

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