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Hierarchical mesoporous perovskite La 0 .5 Sr 0.5 CoO 2.91 nanowires with ultrahigh capacity for Li-air batteries
Open accessAbstract
Lithium-air batteries have captured worldwide attention due to their highest energy density among the chemical batteries. To provide continuous oxygen channels, here, we synthesized hierarchical mesoporous perovskite La 0.5 Sr 0.5 CoO 2.91 (LSCO) nanowires. We tested the intrinsic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) activity in both aqueous electrolytes and nonaqueous electrolytes via rotating disk electrode (RDE) measurements and demonstrated that the hierarchical mesoporous LSCO nanowires are high-performance catalysts for the ORR with low peak-up potential and high limiting diffusion current. Furthermore, we fabricated Li-air batteries on the basis of hierarchical mesoporous LSCO nanowires and nonaqueous electrolytes, which exhibited ultrahigh capacity, ca. over 11,000 mAh⋅g –1 , one order of magnitude higher than that of LSCO nanoparticles. Besides, the possible reaction mechanism is proposed to explain the catalytic activity of the LSCO mesoporous nanowire.
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Armand, M., & Tarascon, J.-M. (2008) · Nature · doi:10.1038/451652a · Cited by 19,612
Li-O2 and Li-S batteries with high energy storage
Bruce, P. G., Freunberger, S. A., Hardwick, L. J., & Tarascon, J.-M. (2012) · Nature Materials · doi:10.1038/nmat3191 · Cited by 9,479
Cited by
Chatenet, M., Pollet, B. G., Dekel, D. R., Dionigi, F., Deseure, J., Millet, P., Braatz, R. D., Bazant, M. Z., Eikerling, M., Staffell, I., et al. (2022) · Chemical Society Reviews · doi:10.1039/d0cs01079k · Cited by 2,025
Transition‐Metal (Co, Ni, and Fe)‐Based Electrocatalysts for the Water Oxidation Reaction
Han, L., Dong, S., & Wang, E. (2016) · Advanced Materials · doi:10.1002/adma.201602270 · Cited by 1,769
Zhang, C., Mahmood, N., Yin, H., Liu, F., & Hou, Y. (2013) · Advanced Materials · doi:10.1002/adma.201301870 · Cited by 1,017
Metadata
- Authors
- Zhao, Y., Xu, L., Mai, L., Han, C., An, Q., Xu, X., Liu, X., & Zhang, Q.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2012-11-12
- Volume
- 109
- Issue
- 48
- Pages
- 19569-19574
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1993299640
- Cited by
- 330
- References
- 2
- FWCI
- 22.79
- Type
- journal article
- Language
- en
- Open access
- green
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- Zhao, Y., Xu, L., Mai, L., Han, C., An, Q., Xu, X., Liu, X., & Zhang, Q. (2012). Hierarchical mesoporous perovskite La 0 .5 Sr 0.5 CoO 2.91 nanowires with ultrahigh capacity for Li-air batteries. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1210315109
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