Oxygen-storage behavior and local structure in Ti-substituted YMnO₃

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• 作者：I. Levin^a ; ^{igor.levin@nist.gov} ; V. Krayzman^a ; T.A. Vanderah^a ; M. Tomczyk^b ; H. Wu^a ; M.G. Tucker^c ; H.Y. Playford^d ; J.C. Woicik^a ; C.L. Dennis^a ; P.M. Vilarinho^b
• 关键词：Hexagonal manganates ; Oxygen storage ; Redox ; Diffraction ; Local structure
• 刊名：Journal of Solid State Chemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：246
• 期：Complete
• 页码：29-41
• 全文大小：2586 K
• 卷排序：246

文摘

Concurrent redox reactions involving Ti and Mn yield oxygen absorption/desorption. Excess oxygen is accommodated as interstitials via correlated atomic shifts. Oxygen breathing is facilitated by the under-bonding of host Mn and O atoms.