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Fabrication of BaZr0.1Ce0.7Y0.2O 3-δ-based proton-conducting solid oxide fuel cells co-fired at 1,150 °C

Journal Article


Abstract


  • Dense proton-conducting BaZr0.1Ce0.7Y 0.2O3 - δ (BZCY) electrolyte membranes were successfully fabricated on NiO-BZCY anode substrates at a low temperature of 1,150 °C via a combined co-press and co-firing process. To fabricate full cells, the LaSr3Co1.5Fe1.5O 10 - δ-BZCY composite cathode layer was fixed to the electrolyte membrane by two means of one-step co-firing and two-step co-firing, respectively. The SEM results revealed that the cathode layer bonded more closely to the electrolyte membrane via the one-step co-firing process. Correspondingly, determined from the electrochemical impedance spectroscopy measured under open current conditions, the electrode polarisation and Ohmic resistances of the one-step co-fired cell were dramatically lower than the other one for its excellent interface adhesion. With humidified hydrogen (2% H 2O) as the fuel and static air as the oxidant, the maximum power density of the one-step co-fired single cell achieved 328 mW cm-2 at 700 °C, showing a much better performance than that of the two-step co-fired single cell, which was 264 mW cm-2 at 700 °C. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Publication Date


  • 2010

Citation


  • Sun, W., Tao, Z., Shi, Z., Yan, L., Zhu, Z., & Liu, W. (2010). Fabrication of BaZr0.1Ce0.7Y0.2O 3-δ-based proton-conducting solid oxide fuel cells co-fired at 1,150 °C. Fuel Cells, 10(6), 1108-1113. doi:10.1002/fuce.200900206

Scopus Eid


  • 2-s2.0-78649911134

Start Page


  • 1108

End Page


  • 1113

Volume


  • 10

Issue


  • 6

Abstract


  • Dense proton-conducting BaZr0.1Ce0.7Y 0.2O3 - δ (BZCY) electrolyte membranes were successfully fabricated on NiO-BZCY anode substrates at a low temperature of 1,150 °C via a combined co-press and co-firing process. To fabricate full cells, the LaSr3Co1.5Fe1.5O 10 - δ-BZCY composite cathode layer was fixed to the electrolyte membrane by two means of one-step co-firing and two-step co-firing, respectively. The SEM results revealed that the cathode layer bonded more closely to the electrolyte membrane via the one-step co-firing process. Correspondingly, determined from the electrochemical impedance spectroscopy measured under open current conditions, the electrode polarisation and Ohmic resistances of the one-step co-fired cell were dramatically lower than the other one for its excellent interface adhesion. With humidified hydrogen (2% H 2O) as the fuel and static air as the oxidant, the maximum power density of the one-step co-fired single cell achieved 328 mW cm-2 at 700 °C, showing a much better performance than that of the two-step co-fired single cell, which was 264 mW cm-2 at 700 °C. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Publication Date


  • 2010

Citation


  • Sun, W., Tao, Z., Shi, Z., Yan, L., Zhu, Z., & Liu, W. (2010). Fabrication of BaZr0.1Ce0.7Y0.2O 3-δ-based proton-conducting solid oxide fuel cells co-fired at 1,150 °C. Fuel Cells, 10(6), 1108-1113. doi:10.1002/fuce.200900206

Scopus Eid


  • 2-s2.0-78649911134

Start Page


  • 1108

End Page


  • 1113

Volume


  • 10

Issue


  • 6