留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 23 Issue 6
Jun.  2016
数据统计

分享

计量
  • 文章访问数:  269
  • HTML全文浏览量:  66
  • PDF下载量:  7
  • 被引次数: 0
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://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://doi.org/10.1007/s12613-016-1283-3
引用本文 PDF XML SpringerLink

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

  • 通讯作者:

    Rong Li    E-mail: li-rong@shu.edu.cn

    Qiang Zhen    E-mail: qzhen@staff.shu.edu.cn

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

    + Author Affiliations
    • 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.
    • loading

    Catalog


    • /

      返回文章
      返回