Journal of Inorganic Materials, Volume. 36, Issue 5, 497(2021)

Preparation and Property of GDC-LSF Dual-phase Composite Membrane with Straight Pores and Sandwich Structure

Qifan ZHENG... Chaoqun LI, Xiaokuan BAN, Zhongliang ZHAN and Chusheng CHEN* |Show fewer author(s)
Author Affiliations
  • Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • show less

    The dense ceramic oxygen-permeable membrane has attracted much attention due to its potential applications in production of oxygen from air and manipulation of oxygen-consuming industrial chemical processes. In the present study, Gd0.1Ce0.9O2-δ-La0.6Sr0.4FeO3-δ (GDC-LSF) dual-phase composite membrane was prepared using the phase-inversion tape casting/lamination/sintering method. The as-prepared membrane consisted of an 80 μm thick dense oxygen separation layer sandwiched between two 420 μm thick finger-like porous support layers. The inner surface of the support layers was further modified with Nd2NiO4+δ (NNO) nanoparticles using the impregnation method. An oxygen permeation flux of 1.53 mL·cm-2·min-1 was measured at 900 ℃ by exposing one side of the membrane to a flowing air stream and the other side to a flowing He stream. When CO2 was used as sweep gas, an oxygen permeation flux of 0.6 mL·cm-2·min-1 was obtained, and no decrease in the flux was observed during 90 h of testing. The membrane remained intact after experiencing over 70 thermal cycles between 800 and 900 ℃. GDC-LSF dual-phase composite membrane with straight pores and sandwich structure has demonstrated satisfactory combination of oxygen permeability, chemical stability and thermal mechanical strength, promising for applications in separation of oxygen from air and oxy-fuel combustion with CO2 capture.

    Tools

    Get Citation

    Copy Citation Text

    Qifan ZHENG, Chaoqun LI, Xiaokuan BAN, Zhongliang ZHAN, Chusheng CHEN. Preparation and Property of GDC-LSF Dual-phase Composite Membrane with Straight Pores and Sandwich Structure[J]. Journal of Inorganic Materials, 2021, 36(5): 497

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: RESEARCH ARTICLE

    Received: Jul. 30, 2020

    Accepted: --

    Published Online: Nov. 25, 2021

    The Author Email: CHEN Chusheng (ccsm@ustc.edu.cn)

    DOI:10.15541/jim20200421

    Topics