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Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes

Journal Article


Abstract


  • Proton-conducting BaCeO3 membranes with different In-doping levels (from 10 to 30%) were fabricated on NiO-based anode substrates. Indium, which was only used as a trivalent element to create oxygen vacancies in BaCeO3 previously, was found to have the function of stabilizing BaCeO3 in this study. The In-doped BaCeO3 showed improved chemical stability against CO2, while even the traditional BaCeO3 substituting with a small amount of Zr decomposed in the same environment. Furthermore, unlike other strategies for stabilizing BaCeO3, the supported In-doped BaCeO3 membrane became dense after firing at relatively low temperatures. We also investigated the influences of the sintering temperatures and the In-doping levels on the densification and the electrical properties of the supported BaCeO3 membranes, which revealed that the In-doping strategy increased both the chemical stability and sinterability for BaCeO3 with little loss of electrical performance. © 2009 Elsevier B.V. All rights reserved.

Publication Date


  • 2009

Citation


  • Bi, L., Tao, Z., Liu, C., Sun, W., Wang, H., & Liu, W. (2009). Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes. Journal of Membrane Science, 336(1-2), 1-6. doi:10.1016/j.memsci.2009.03.042

Scopus Eid


  • 2-s2.0-67349108795

Start Page


  • 1

End Page


  • 6

Volume


  • 336

Issue


  • 1-2

Abstract


  • Proton-conducting BaCeO3 membranes with different In-doping levels (from 10 to 30%) were fabricated on NiO-based anode substrates. Indium, which was only used as a trivalent element to create oxygen vacancies in BaCeO3 previously, was found to have the function of stabilizing BaCeO3 in this study. The In-doped BaCeO3 showed improved chemical stability against CO2, while even the traditional BaCeO3 substituting with a small amount of Zr decomposed in the same environment. Furthermore, unlike other strategies for stabilizing BaCeO3, the supported In-doped BaCeO3 membrane became dense after firing at relatively low temperatures. We also investigated the influences of the sintering temperatures and the In-doping levels on the densification and the electrical properties of the supported BaCeO3 membranes, which revealed that the In-doping strategy increased both the chemical stability and sinterability for BaCeO3 with little loss of electrical performance. © 2009 Elsevier B.V. All rights reserved.

Publication Date


  • 2009

Citation


  • Bi, L., Tao, Z., Liu, C., Sun, W., Wang, H., & Liu, W. (2009). Fabrication and characterization of easily sintered and stable anode-supported proton-conducting membranes. Journal of Membrane Science, 336(1-2), 1-6. doi:10.1016/j.memsci.2009.03.042

Scopus Eid


  • 2-s2.0-67349108795

Start Page


  • 1

End Page


  • 6

Volume


  • 336

Issue


  • 1-2