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Stabilizing Nanostructured Solid Oxide Fuel Cell Cathode with Atomic Layer Deposition
Abstract
We demonstrate that the highly active but unstable nanostructured intermediate-temperature solid oxide fuel cell cathode, La0.6Sr0.4CoO3-δ (LSCo), can retain its high oxygen reduction reaction (ORR) activity with exceptional stability for 4000 h at 700 °C by overcoating its surfaces with a conformal layer of nanoscale ZrO2 films through atomic layer deposition (ALD). The benefits from the presence of the nanoscale ALD-ZrO2 overcoats are remarkable: a factor of 19 and 18 reduction in polarization area-specific resistance and degradation rate over the pristine sample, respectively. The unique multifunctionality of the ALD-derived nanoscaled ZrO2 overcoats, that is, possessing porosity for O2 access to LSCo, conducting both electrons and oxide-ions, confining thermal growth of LSCo nanoparticles, and suppressing surface Sr-segregation is deemed the key enabler for the observed stable and active nanostructured cathode.
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Cited by
Catalyst Design with Atomic Layer Deposition
O’Neill, B. J., Jackson, D. H. K., Lee, J., Canlas, C., Stair, P. C., Marshall, C. L., Elam, J. W., Kuech, T. F., Dumesic, J. A., & Huber, G. W. (2015) · ACS Catalysis · doi:10.1021/cs501862h · Cited by 782
Proton-conducting oxides for energy conversion and storage
Duan, C., Huang, J., Sullivan, N., & O'Hayre, R. (2020) · Applied Physics Reviews · doi:10.1063/1.5135319 · Cited by 530
Heterointerface engineering for enhancing the electrochemical performance of solid oxide cells
Zhao, C., Li, Y., Zhang, W., Zheng, Y., Lou, X., Yu, B., Chen, J., Chen, Y., Liu, M., & Wang, J. (2020) · Energy & Environmental Science · doi:10.1039/c9ee02230a · Cited by 319
Chen, Y., Zhou, W., Ding, D., Liu, M., Ciucci, F., Tade, M., & Shao, Z. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201500537 · Cited by 305
Onn, T., Küngas, R., Fornasiero, P., Huang, K., & Gorte, R. (2018) · Inorganics · doi:10.3390/inorganics6010034 · Cited by 111
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Metadata
- Authors
- Gong, Y., Palacio, D., Song, X., Patel, R. L., Liang, X., Zhao, X., Goodenough, J. B., & Huang, K.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-08-12
- Volume
- 13
- Issue
- 9
- Pages
- 4340-4345
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2041841805
- Cited by
- 179
- References
- 0
- FWCI
- 5.77
- Type
- journal article
- Language
- en
- Open access
- closed
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- Gong, Y., Palacio, D., Song, X., Patel, R. L., Liang, X., Zhao, X., Goodenough, J. B., & Huang, K. (2013). Stabilizing Nanostructured Solid Oxide Fuel Cell Cathode with Atomic Layer Deposition. Nano Letters. https://doi.org/10.1021/nl402138w
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