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Park, Noejung
Computational Physics & Electronic Structure Lab
Research Interests
  • Electronic structure calculation, computational physics, computational material science

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Development of Double-Perovskite Compounds as Cathode Materials for Low-Temperature Solid Oxide Fuel Cells

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Title
Development of Double-Perovskite Compounds as Cathode Materials for Low-Temperature Solid Oxide Fuel Cells
Author
Yoo, SeonyoungJun, AreumJu, Young-WanOdkhuu, DorjHyodo, JunjiJeong, Hu YoungPark, NoejungShin, JeeyoungIshihara, TatsumiKim, Guntae
Issue Date
2014-11
Publisher
WILEY-V C H VERLAG GMBH
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.53, no.48, pp.13064 - 13067
Abstract
A class of double-perovskite compounds display fast oxygen ion diffusion and high catalytic activity toward oxygen reduction while maintaining excellent compatibility with the electrolyte. The astoundingly extended stability of NdBa1−xCaxCo2O5+δ (NBCaCO) under both air and CO2-containing atmosphere is reported along with excellent electrochemical performance by only Ca doping into the A site of NdBaCo2O5+δ (NBCO). The enhanced stability can be ascribed to both the increased electron affinity of mobile oxygen species with Ca, determined through density functional theory calculations and the increased redox stability from the coulometric titration.
URI
https://scholarworks.unist.ac.kr/handle/201301/8985
DOI
10.1002/anie.201407006
ISSN
1433-7851
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PHY_Journal Papers
UCRF_Journal Papers
ECHE_Journal Papers
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