Volume 23 Issue 6
Jun.  2016
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Tai-he Wang, Wei-jia Song, Rong Li, and Qiang Zhen, Fluorite Ce0.8Sm0.2O2-δ porous layer coating to enhance the oxygen permeation behavior of a BaCo0.7Fe0.2Nb0.1O3-δ mixed conductor, Int. J. Miner. Metall. Mater., 23(2016), No. 6, pp.698-703. https://dx.doi.org/10.1007/s12613-016-1283-3
Cite this article as: Tai-he Wang, Wei-jia Song, Rong Li, and Qiang Zhen, Fluorite Ce0.8Sm0.2O2-δ porous layer coating to enhance the oxygen permeation behavior of a BaCo0.7Fe0.2Nb0.1O3-δ mixed conductor, Int. J. Miner. Metall. Mater., 23(2016), No. 6, pp.698-703. https://dx.doi.org/10.1007/s12613-016-1283-3

Fluorite Ce0.8Sm0.2O2-δ porous layer coating to enhance the oxygen permeation behavior of a BaCo0.7Fe0.2Nb0.1O3-δ mixed conductor

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This work was financially supported by the National Natural Science Foundation of China (Nos. 51472156, 51072112, and 51311130110), the Innovation Foundation of Shanghai University (No. sdcx2012033), and the Training Funding Project for Young College Teachers of Shanghai. The authors also would like to acknowledge the Instrument Analysis Research Center, Shanghai University for the assistance in material characterization (SEM, TEM, and XRD).

  • Fluorite Ce0.8Sm0.2O2-δ (SDC) nanopowder with a crystallite size of 15 nm was synthesized by a co-precipitation method. An SDC porous layer was coated onto a BaCo0.7Fe0.2Nb0.1O3-δ (BCFN) mixed conductor to improve its oxygen transport behavior. The results show that the SDC-coated BCFN membrane exhibits a remarkably higher oxygen permeation flux (JO2) than the uncoated BCFN in the partial oxidation of coke oven gas (COG). The maximum (JO2) value of the SDC-coated BCFN is 18.28 mL·min-1·cm-2 under a COG/air flux of 177 mL·min-1/353 mL·min-1 at 875℃ when the thickness of the BCFN membrane is 1 mm; this (JO2) value is 23% higher than that of the uncoated BCFN membrane. This enhancement is likely because of the higher oxygen ionic conductivity of SDC, which supplies oxygen vacancies and accelerates oxygen exchange on the membrane/coating layer/gas three-phase boundary.
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    1. Nurizati Rosli, Mohd Mahadi Halim, Khaled M. Chahrour, et al. Incorporation of Zinc Oxide on Macroporous Silicon Enhanced the Sensitivity of Macroporous Silicon MSM Photodetector. ECS Journal of Solid State Science and Technology, 2020, 9(10): 105005. DOI:10.1149/2162-8777/abc6ef
    2. Jin Woong Chae, Yu Kang Park, Edoardo Magnone, et al. Oxygen permeation properties of Sm/Sr co-doped ceria decorated Ba0.5Sr0.5Co0.8Fe0.2O3-δ hollow fiber membrane. Journal of Industrial and Engineering Chemistry, 2019, 76: 508. DOI:10.1016/j.jiec.2019.04.018
    3. Peng Jiang, Wen-hui Yang, Yun-cheng Zhou, et al. Synthesis and optical properties of turquoise- and green-colored brownmillerite-type Ba2In2−x−y Mn x Al y O5+x codoped with manganese and aluminum. International Journal of Minerals, Metallurgy, and Materials, 2016, 23(11): 1346. DOI:10.1007/s12613-016-1357-2

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