SrCeO_3 BASED HIGH TEMPERATURE PROTON CONDUCTOR AND HYDROGEN PROBE

Acta Metall Sin

1994, Vol. 30

Issue (17): 238-242 DOI:

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SrCeO_3 BASED HIGH TEMPERATURE PROTON CONDUCTOR AND HYDROGEN PROBE

ZHENG Minhui; CHEN Xiang (University of Science and Technology Beijing)

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ZHENG Minhui; CHEN Xiang (University of Science and Technology Beijing). SrCeO_3 BASED HIGH TEMPERATURE PROTON CONDUCTOR AND HYDROGEN PROBE. Acta Metall Sin, 1994, 30(17): 238-242.

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Abstract Hydrogen probes were constructed with highly dense tubes of SrCe0.95Yb0.05O3-α based proton conductor made by the authors, and with the mixture of Ca/CaH2. By insertion of the probe into liquid Al sample, the hydrogen concentration cell: Mo, Ca/CaH2｜H＋conductor[H]molten Al, Mo, is available to determine its hydrogen content. EMF of the probe was stable for 1.8 ks and also responded rapidly and accurately to the dehydrogenation by hexachloroethane. XRD and TG analysis of the recovered proton conductor showed that no other phase but perovskite was identified and the excess of Sr improves the stabiltiy of the proton conductor under strong reducing atmosphere.

Key words: StCeO_3 proton conductor hydrogen probe liquid Al

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I17/238

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