THERMAL SCIENCE

International Scientific Journal

Fushao Li

,

Yingxian Xu

,

Shubiao Xia

,

Jianjun Liu

,

Yuxing Yan

,

Long Jiang

,

Feixiang Cheng

A HIERARCHICAL HYBRID ELECTRODE FOR RAPID OXYGEN REDUCTION REACTION BELOW 800°C

ABSTRACT
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.
KEYWORDS
solid-oxide fuel cells, cathode, fiber, oxygen reduction reaction, area specific resistance
PAPER SUBMITTED: 2019-04-24
PAPER REVISED: 2019-09-29
PAPER ACCEPTED: 2019-09-29
PUBLISHED ONLINE: 2020-06-21
DOI REFERENCE: https://doi.org/10.2298/TSCI2004455L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 4, PAGES [2455 - 2462]
REFERENCES
  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
PDF VERSION [DOWNLOAD]
A hierarchical hybrid electrode for rapid oxygen reduction reaction below 800°C

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence