The oxygen permeation properties of nanocrystalline Ce O2 thin films

K. S. Brinkman; H. Takamura; H. L. Tuller; T. Iijima

doi:10.1149/1.3503519

The oxygen permeation properties of nanocrystalline Ce O₂ thin films

K. S. Brinkman, H. Takamura, H. L. Tuller, T. Iijima

ENG - Materials Science

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The measurement of oxygen flux across nanocrystalline cerium oxide (Ce O₂) thin films at intermediate temperature (650-800°C) is presented. Porous ceria support substrates were fabricated by sintering with carbon additions. The final dense film was deposited from an optimized sol-gel solution resulting in a mean grain size of 50 nm, which displayed oxygen flux values of up to 0.014 μ mol/ cm² s over the oxygen partial pressure range from air to helium gas used in the measurement at 800°C. The oxygen flux characteristics confirm mixed ionic and electronic conductivities in nanocrystalline ceria films and demonstrate the role of size dependent materials properties as a design parameter in functional membranes for oxygen separation.

Original language	English
Pages (from-to)	B1852-B1857
Journal	Journal of the Electrochemical Society
Volume	157
Issue number	12
DOIs	https://doi.org/10.1149/1.3503519
Publication status	Published - 2010

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10.1149/1.3503519

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abstract = "The measurement of oxygen flux across nanocrystalline cerium oxide (Ce O2) thin films at intermediate temperature (650-800°C) is presented. Porous ceria support substrates were fabricated by sintering with carbon additions. The final dense film was deposited from an optimized sol-gel solution resulting in a mean grain size of 50 nm, which displayed oxygen flux values of up to 0.014 μ mol/ cm2 s over the oxygen partial pressure range from air to helium gas used in the measurement at 800°C. The oxygen flux characteristics confirm mixed ionic and electronic conductivities in nanocrystalline ceria films and demonstrate the role of size dependent materials properties as a design parameter in functional membranes for oxygen separation.",

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T1 - The oxygen permeation properties of nanocrystalline Ce O2 thin films

AU - Brinkman, K. S.

AU - Takamura, H.

AU - Tuller, H. L.

AU - Iijima, T.

PY - 2010

Y1 - 2010

N2 - The measurement of oxygen flux across nanocrystalline cerium oxide (Ce O2) thin films at intermediate temperature (650-800°C) is presented. Porous ceria support substrates were fabricated by sintering with carbon additions. The final dense film was deposited from an optimized sol-gel solution resulting in a mean grain size of 50 nm, which displayed oxygen flux values of up to 0.014 μ mol/ cm2 s over the oxygen partial pressure range from air to helium gas used in the measurement at 800°C. The oxygen flux characteristics confirm mixed ionic and electronic conductivities in nanocrystalline ceria films and demonstrate the role of size dependent materials properties as a design parameter in functional membranes for oxygen separation.

AB - The measurement of oxygen flux across nanocrystalline cerium oxide (Ce O2) thin films at intermediate temperature (650-800°C) is presented. Porous ceria support substrates were fabricated by sintering with carbon additions. The final dense film was deposited from an optimized sol-gel solution resulting in a mean grain size of 50 nm, which displayed oxygen flux values of up to 0.014 μ mol/ cm2 s over the oxygen partial pressure range from air to helium gas used in the measurement at 800°C. The oxygen flux characteristics confirm mixed ionic and electronic conductivities in nanocrystalline ceria films and demonstrate the role of size dependent materials properties as a design parameter in functional membranes for oxygen separation.

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JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

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The oxygen permeation properties of nanocrystalline Ce O₂ thin films

Abstract

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