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Jung, Jae-Il
Nano Energy Storage Materials Lab
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A bifunctional perovskite catalyst for oxygen reduction and evolution

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Title
A bifunctional perovskite catalyst for oxygen reduction and evolution
Author
Jung, Jae-IlJeong, Hu YoungLee, Jang-SooKim, Min GyuCho, Jaephil
Issue Date
2014-04
Publisher
WILEY-V C H VERLAG GMBH
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.53, no.18, pp.4582 - 4586
Abstract
La0.3(Ba0.5Sr0.5)0.7Co 0.8Fe0.2O3-δ is a promising bifunctional perovskite catalyst for the oxygen reduction reaction and the oxygen evolution reaction. This catalyst has circa 10 nm-scale rhombohedral LaCoO3 cobaltite particles distributed on the surface. The dynamic microstructure phenomena are attributed to the charge imbalance from the replacement of A-site cations with La3+ and local stress on Co-site sub-lattice with the cubic perovskite structure. The perovskite La0.3(Ba 0.5Sr0.5)0.7Co0.8Fe 0.2O3-δ (La0.3-5582) is introduced as a bifunctional catalyst to compete with precious-metal-based catalysts. The newly introduced perovskite bears rhombohedral phase LaCoO3-δ particles on the surface of the grains.
URI
https://scholarworks.unist.ac.kr/handle/201301/10327
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84899536361
DOI
10.1002/anie.201311223
ISSN
1433-7851
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