Strontium-substituted Ba(Ce,Zr)O3-δ oxides for proton conducting membranes
2014 ◽
Vol 07
(06)
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pp. 1440014
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Keyword(s):
This paper is focused on Ba 1-x Sr x( Ce 0.75 Zr 0.25)0.9 Nd 0.1 O 2.95 proton-conducting oxides, for which the effect of substitution of barium by strontium in a full range of compositions is studied. Crystal lattice symmetry, proton conductivity and stability in CO 2 atmosphere are discussed. Substitution of barium by strontium reduces toxicity and does not deteriorate chemical stability, however, crystal lattice of the strontium-substituted perovskites is more distorted, causing reduction of proton conductivity more than one order of magnitude. Balance between opposite tendencies can be found at low Sr content, e.g., 25 at.%.
2021 ◽
pp. 11-16
2003 ◽
Vol 423-425
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pp. 441-444
2017 ◽
Vol 19
(18)
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pp. 11485-11491
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Keyword(s):
2011 ◽
Vol 383
(1-2)
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pp. 280-288
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2020 ◽
Vol 2020
(1)
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pp. 17-18
Keyword(s):