International Scientific Journal


The 3-D backbones with ionic conductivity are first built by sintering Ce0.8Sm0.2O1.9 silks, then Ca3Co2O6 nanoparticles as electrocatalyst are filled in by infiltrating ionic solution, as a result, a hybrid electrode with hierarchical structure is constructed as the cathode of solid oxide fuel cells. Compared with the single-phase Ca3Co2O6 bulk cathode and common Ca3Co2O6-Ce0.8Sm0.2O1.9 composite one, this hybrid electrode is very active for oxygen reduction reaction. At 800°C, area specific resistance with this cathode is reduced to 0.062 Ωcm2, and power density peak with the electrolyte-supported single-cell is promoted to 760 mW/cm2. The superior catalytical activity is attributed to the enlarged area for surface oxygen exchange kinetics and enhanced ionic transport behaviour.
PAPER REVISED: 2019-09-29
PAPER ACCEPTED: 2019-09-29
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THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 4, PAGES [2455 - 2462]
  1. Zhang, Y., et al., Recent Progress on Advanced Materials for Solid-Oxide Fuel Cells Operating Below 500 °C, Advanced Materials, 29 (2017), 48, ID 1700132
  2. Zhu, Y., et al., Promotion of Oxygen Reduction by Exsolved Silver Nanoparticles on a Perovskite Scaffold for Low-Temperature Solid Oxide Fuel Cells, Nano Letters, 16 (2016), 1, pp. 512-518
  3. Jun, A., et al., Perovskite as a Cathode Material: A Review of Its Role in Solid-Oxide Fuel Cell Tech-nology, ChemElectroChem, 3 (2016), 4, pp. 511-530
  4. Wei, T., et al., Evaluation of Ca3Co2O6 as Cathode Material for High-Performance Solid-Oxide Fuel Cell, Scientific Reports, 3 (2013), Jan., ID 1125
  5. Zhou, W., et al., A Highly Active Perovskite Electrode for the Oxygen Reduction Reaction Below 600 °C, Angewandte Chemie International Edition, 52 (2013), 52, pp. 14036-14040
  6. Shao, Z., et al., A High-Performance Cathode for the Next Generation of Solid-Oxide Fuel Cells, Nature, 431 (2004), 7005, pp. 170-173
  7. Dieterle, L., et al., Microstructure of Nanoscaled La0.6Sr0.4CoO3-δ Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells, Advanced Energy Materials, 1 (2011), 2, pp. 249-258
  8. Gong, Y., et al., Atomic Layer Deposition Functionalized Composite SOFC Cathode La0.6Sr0.4Fe0.8Co0.2O3-δ-Gd0.2Ce0.8O1.9: Enhanced Long-Term Stability, Chemistry of Materials, 25 (2013), 21, pp. 4224-4231
  9. Li, F., et al., One-Pot Synthesized Hetero-Structured Ca3Co2O6/La0.6Ca0.4CoO3 Dual-Phase Composite Cathode Materials for Solid-Oxide Fuel Cells, International Journal of Hydrogen Energy, 40 (2015), 37, pp. 12750-12760
  10. Li, F., et al., Evaluation of Ca3(Co,M)2O6 (M = Co, Fe, Mn, Ni) as New Cathode Materials for Solid-Oxide Fuel Cells, Progress in Natural Science: Materials International, 25 (2015), 5, pp. 370-378
  11. Li, F., et al., Ca3Co2O6-Ce0.8Sm0.2O1.9 Composite Cathode Material for Solid Oxide Fuel Cells, Journal of Alloys and Compounds , 753 (2018), July, pp. 292-299
  12. Huang, Y. H., et al., Double Perovskites as Anode Materials for Solid-Oxide Fuel Cells, Science, 312 (2006), 5771, pp. 254-257
  13. Murray, E. P., et al., Oxygen Transfer Processes in (La,Sr)MnO3/Y2O3-Stabilized ZrO2 Cathodes: An Impedance Spectroscopy Study, Solid State Ionics, 110 (1998), 3-4, pp. 235-243
  14. Klotz, D., et al., Practical Guidelines for Reliable Electrochemical Characterization of Solid Oxide Fuel Cells, Electrochimica Acta, 227 (2017), 227, pp. 110-126
  15. Zhou, W., et al., A New Cathode for Solid Oxide Fuel Cells Capable of In Situ Electrochemical Regeneration, Journal of Materials Chemistry, 21 (2011), 39, pp. 15343-15351
  16. Aguadero, A., et al., A New Family of Mo-doped SrCoO3-δ Perovskites for Application in Reversible Solid State Electrochemical Cells, Chemistry of Materials, 24 (2012), 14, pp. 2655-2663
  17. Li, Y., et al., Oxygen-Deficient Perovskite Sr0.7Y0.3CoO2.65-δ as a Cathode for Intermediate-Temperature Solid Oxide Fuel Cells, Chemistry of Materials, 23 (2011), 22, pp. 5037-5044
  18. Jiang, L., et al., Thermal and Electrochemical Properties of PrBa0.5Sr0.5Co2-xFexO5+δ (x = 0.5, 1.0, 1.5) Cathode Materials for Solid-Oxide Fuel Cells, Journal of Power Sources, 232 (2013), June, pp. 279-285
  19. Tian, D., He, J. H., Macromolecular Electrospinning: Basic Concept & Preliminary Experiment, Results in Physics, 11 (2018), Dec., pp. 740-742
  20. Tian, D., et al., Macromolecule Orientation in Nanofibers, Nanomaterials, 8 (2018), 11, ID 918
  21. Tian, D., et al., Self-Assembly of Macromolecules in a Long and Narrow Tube, Thermal Science, 22 (2018), 4, pp. 1659-1664
  22. Li, Y., He, J. H. Fabrication and Characterization of ZrO2 Nanofibers by Critical Bubble Electrospinning for High-Temperature-Resistant Adsorption and Separation, Adsorption Science & Technology, 37 (2019), 5-6, pp. 425-437
  23. Peng, N. B., et al., A Rachford-Rice-Like Equation for Solvent Evaporation in the Bubble Electrospinning, Thermal Science, 22 (2018), 4, pp. 1679-1683
  24. Zhou, C. J., et al., Silkworm-Based Silk Fibers by Electrospinning, Results in Physics, 15 (2019), Dec., ID 102646

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