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

被引：1

作者：

Uchiyama, T. ^{[1
]}

Kamitani, K. ^{[2
]}

Kato, K. ^{[3
]}

Nishibori, M. ^{[4
]}

机构：

[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Dept Mol & Mat Sci, Fukuoka, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn, Fukuoka, Japan

[3] SPring 8, Japan Synchrotron radiat Res Inst, Sayo, Hyogo, Japan

[4] Kyushu Univ, Dept Energy & Mat, Fac Engn Sci, Fukuoka, Japan

来源：

16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) | 2016年 / 712卷

关键词：

SELF-REGENERATION; CATALYST;

D O I：

10.1088/1742-6596/712/1/012043

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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% H-2/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 degrees C although the cationic Pd species remained at 700 degrees C due to the strong metal-support interaction.

引用

页数：4

共 6 条

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