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Fabrication and performance of a proton-conducting solid oxide fuel cell based on a thin BaZr0.8Y0.2O3-δ electrolyte membrane

Journal Article


Abstract


  • A dense BaZr0.8Y0.2O3-δ (BZY) proton-conducting electrolyte membrane is successfully fabricated on a NiO-BaZr0.1Ce0.7Y0.2O3-δ (NiO-BZCY) anode substrate by a co-pressing process after co-firing at 1400 °C. BZY powders are synthesized via a citric acid-nitrate gel combustion process after calcination at 1100 °C. The SEM results reveal that the BZY membrane is crack-free, very dense, and 20 μm thick. A single cell with Sm0.5Sr0.5CoO3-δ-Ce0.8Sm0.2O2-δ (SSC-SDC) as the cathode is assembled and tested with wet hydrogen (2% H2O) as the fuel and static air as the oxidant. The open circuit voltages (OCVs) are 0.953, 0.987, 1.014, and 1.039 V at 700, 650, 600, and 550 °C, respectively. A maximum power density of 170 mW cm-2 is obtained at 700 °C. Resistances of the testing cell are investigated under open circuit conditions at different operating temperatures by impedance spectroscopy. © 2010 Elsevier B.V. All rights reserved.

Publication Date


  • 2010

Citation


  • Sun, W., Yan, L., Shi, Z., Zhu, Z., & Liu, W. (2010). Fabrication and performance of a proton-conducting solid oxide fuel cell based on a thin BaZr0.8Y0.2O3-δ electrolyte membrane. Journal of Power Sources, 195(15), 4727-4730. doi:10.1016/j.jpowsour.2010.02.012

Scopus Eid


  • 2-s2.0-77950301163

Start Page


  • 4727

End Page


  • 4730

Volume


  • 195

Issue


  • 15

Abstract


  • A dense BaZr0.8Y0.2O3-δ (BZY) proton-conducting electrolyte membrane is successfully fabricated on a NiO-BaZr0.1Ce0.7Y0.2O3-δ (NiO-BZCY) anode substrate by a co-pressing process after co-firing at 1400 °C. BZY powders are synthesized via a citric acid-nitrate gel combustion process after calcination at 1100 °C. The SEM results reveal that the BZY membrane is crack-free, very dense, and 20 μm thick. A single cell with Sm0.5Sr0.5CoO3-δ-Ce0.8Sm0.2O2-δ (SSC-SDC) as the cathode is assembled and tested with wet hydrogen (2% H2O) as the fuel and static air as the oxidant. The open circuit voltages (OCVs) are 0.953, 0.987, 1.014, and 1.039 V at 700, 650, 600, and 550 °C, respectively. A maximum power density of 170 mW cm-2 is obtained at 700 °C. Resistances of the testing cell are investigated under open circuit conditions at different operating temperatures by impedance spectroscopy. © 2010 Elsevier B.V. All rights reserved.

Publication Date


  • 2010

Citation


  • Sun, W., Yan, L., Shi, Z., Zhu, Z., & Liu, W. (2010). Fabrication and performance of a proton-conducting solid oxide fuel cell based on a thin BaZr0.8Y0.2O3-δ electrolyte membrane. Journal of Power Sources, 195(15), 4727-4730. doi:10.1016/j.jpowsour.2010.02.012

Scopus Eid


  • 2-s2.0-77950301163

Start Page


  • 4727

End Page


  • 4730

Volume


  • 195

Issue


  • 15