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Preparation and Hydrogen Pumping Characteristics of BaCe0.8Y0.2O3−δ Thin Film

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Abstract

Thin films of BaCe0.8Y0.2O3−δ (BCY) were prepared by colloidal spray deposition. Dense, crack-free BCY films having a grain size of 2–7 µm were successfully deposited on NiO/BCY substrates. Electrochemical hydrogen pumping with the BCY films showed that the maximum current density increased with temperature. The maximum current density was sensitive to the moisture in the cathode gas; the value obtained with a dry cathode gas was only half that with a wet cathode gas. A very high hydrogen-pumping current density of 3.4 A/cm2 was measured at 700°C with an applied voltage of 1.5 V.

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Acknowledgments

This work is supported by U.S. Department of Energy, National Energy Technology Laboratory’s Gasification Technologies Program, under Contract W-31-109-Eng-38.

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Authors and Affiliations

  1. Energy Technology Division, Argonne National Laboratory, Argonne, IL, 60439, USA

    T. H. Lee, C. Zuo, S. E. Dorris & U. Balachandran

  2. Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA

    B. J. Harder

Authors
  1. T. H. Lee
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  2. B. J. Harder
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  3. C. Zuo
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  4. S. E. Dorris
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  5. U. Balachandran
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Lee, T.H., Harder, B.J., Zuo, C. et al. Preparation and Hydrogen Pumping Characteristics of BaCe0.8Y0.2O3−δ Thin Film. MRS Online Proceedings Library 835, K1.5 (2004). https://doi.org/10.1557/PROC-835-K1.5

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