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An Active and Robust Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
Open accessAbstract
Reversible protonic ceramic electrochemical cells (R-PCECs) are a promising option for efficient and low-cost generation of electricity and hydrogen. Commercialization of R-PCECs, however, hinges on the development of highly active and robust air electrodes. Here, we report an air electrode consisting of PrBa 0.8 Ca 0.2 Co 2 O 5+δ and in situ exsolved BaCoO 3−δ nanoparticles (PBCC–BCO) that shows minimal polarization resistance (∼0.24 Ω cm 2 at 600 °C) and high stability when exposed to humidified air with 3−50% H 2 O. An R-PCEC utilizing PBCC-BCO demonstrates remarkable performances at 600 °C: achieving a peak power density of 1.06 W cm –2 in the fuel cell mode and a current density of 1.51 A cm –2 at 1.3 V in an electrolysis mode. More importantly, the R-PCECs demonstrate an exceptionally high durability over 1833 h of continuous operation in the electrolysis mode. This work offers an efficient approach to design of high-performance and durable electrodes for R-PCECs.
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Cited by
Luo, Z., Hu, X., Zhou, Y., Ding, Y., Zhang, W., Li, T., & Liu, M. (2024) · Advanced Materials · doi:10.1002/adma.202311159 · Cited by 59
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Metadata
- Authors
- Zhou, Y., Liu, E., Chen, Y., Liu, Y., Zhang, L., Zhang, W., Luo, Z., Kane, N., Zhao, B., Soule, L., Niu, Y., Ding, Y., Ding, H., Ding, D., & Liu, M.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-03-26
- Pages
- 1511-1520
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W3141824881
- Cited by
- 284
- References
- 0
- FWCI
- 11.50
- Type
- journal article
- Language
- en
- Open access
- green
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