Development of double-perovskite compounds as cathode materials for low-temperature solid oxide fuel cells

Seonyoung Yoo, Areum Jun, Young Wan Ju, Dorj Odkhuu, Junji Hyodo, Hu Young Jeong, Noejung Park, Jeeyoung Shin, Tatsumi Ishihara, Guntae Kim

研究成果: Contribution to journalArticle査読

135 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)13064-13067
ページ数4
ジャーナルAngewandte Chemie - International Edition
53
48
DOI
出版ステータス出版済み - 11 24 2014

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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