Nb K- and L3-edges XAFS study on the structure of supported Nb carbide catalyst

被引：8

作者：

Ichikuni, N. ^{[1
]}

Yanagase, F. ^{[1
]}

Mitsuhara, K. ^{[2
]}

Hara, T. ^{[1
]}

Shimazu, S. ^{[1
]}

机构：

[1] Chiba Univ, Grad Sch Engn, Dept Appl Chem & Biotechnol, Chiba, Japan

[2] Ritsumeikan Univ, Res Org Sci & Technol, Kusatsu, Japan

来源：

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

关键词：

D O I：

10.1088/1742-6596/712/1/012060

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Mesoporous silica SBA-15 supported NbC catalysts were prepared under reduced pressure of CH4-H-2 gas in a closed circulating system. Nb K- nd L-3-edges XAFS measurements revealed that small NbC cluster formed on SBA-15 support and gradual carburization process by lengthening the carburization temperature-maintaining period. Carburization degree of Nb species was clearly explained by using threshold energy shift of Nb L-3-edge XANES profile.

引用

页数：4

共 5 条

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