Reduction process of Pd-containing La-Fe perovskite-type oxides by in-situ Dispersive X-ray absorption spectroscopy

T. Uchiyama, K. Kamitani, K. Kato, M. Nishibori

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Abstract

Reduction process of Pd-containing La-Fe perovskites was investigated by in-situ Pd K-edge dispersive X-ray absorption fine structure as well as mass spectroscopy. The prepared perovskite was characterized by a conventional X-ray absorption spectra to confirm the incorporation of cationic Pd into perovskite matrix. Under the reductive atmosphere (5 vol%H2/He), we found the presence of three reduction processes of Pd cations in perovskite structure. The segregation of Pd metal particles was observed from 200-400 oC although the cationic Pd species remained at 700 oC due to the strong metal-support interaction.

Original languageEnglish
Article number012043
JournalJournal of Physics: Conference Series
Volume712
Issue number1
DOIs
Publication statusPublished - Jan 1 2016
Event16th International Conference on X-Ray Absorption Fine Structure, XAFS 2015 - Karlsruhe, Germany
Duration: Aug 23 2015Aug 28 2015

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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