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Rapid oxygen ion diffusion and surface exchange kinetics in PrBaCo2O5+x with a perovskite related structure and ordered A cations
Abstract
As part of an investigation of new cathode materials for intermediate temperature solid oxide fuel cells, we have investigated particular perovskite oxides with ordered A cations which, in turn, localize the oxygen vacancies into layers. The oxygen exchange kinetics of polycrystalline samples of the oxygen-deficient double perovskite PrBaCo2O5+x (PBCO) have been determined by electrical conductivity relaxation (ECR) and by oxygen-isotope exchange and depth profiling (IEDP). The ECR and IEDP measurements reveal that PBCO has high electronic conductivity and rapid oxygen ion diffusion and surface exchange kinetics. Both techniques demonstrate that the oxygen kinetics in this structure type are significantly faster than in corresponding disordered perovskites.
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Citations
Cited by
Materials for Solid Oxide Fuel Cells
Jacobson, A. J. (2010) · Chemistry of Materials · doi:10.1021/cm902640j · Cited by 1,366
Self-citationChen, D., Chen, C., Baiyee, Z. M., Shao, Z., & Ciucci, F. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00073 · Cited by 936
Prediction of solid oxide fuel cell cathode activity with first-principles descriptors
Lee, Y.-L., Kleis, J., Rossmeisl, J., Shao-Horn, Y., & Morgan, D. (2011) · Energy & Environmental Science · doi:10.1039/c1ee02032c · Cited by 659
Chroneos, A., Yildiz, B., Tarancón, A., Parfitt, D., & Kilner, J. A. (2011) · Energy & Environmental Science · doi:10.1039/c0ee00717j · Cited by 434
Double Perovskites in Catalysis, Electrocatalysis, and Photo(electro)catalysis
Xu, X., Zhong, Y., & Shao, Z. (2019) · Trends in Chemistry · doi:10.1016/j.trechm.2019.05.006 · Cited by 367
Metadata
- Authors
- Kim, G., Wang, S., Jacobson, A. J., Reimus, L., Brodersen, P., & Mims, C. A.
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2007
- Volume
- 17
- Issue
- 24
- Pages
- 2500
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2001696690
- Cited by
- 588
- References
- 0
- FWCI
- 12.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kim, G., Wang, S., Jacobson, A. J., Reimus, L., Brodersen, P., & Mims, C. A. (2007). Rapid oxygen ion diffusion and surface exchange kinetics in PrBaCo2O5+x with a perovskite related structure and ordered A cations. Journal of Materials Chemistry. https://doi.org/10.1039/b618345j
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