Ruthenium catalyst supported on CeO2 for ammonia synthesis

被引：63

作者：

Niwa, Y ^{[1
]}

Aika, K ^{[1
]}

机构：

[1] TOKYO INST TECHNOL, INTERDISCIPLINARY GRAD SCH SCI & ENGN, DEPT ENVIRONM CHEM & ENGN, MIDORI KU, YOKOHAMA, KANAGAWA 226, JAPAN

来源：

CHEMISTRY LETTERS | 1996年 / 01期

关键词：

D O I：

10.1246/cl.1996.3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lanthanide oxides (Sm2O3, La2O3, especially CeO2) were more effective for ammonia synthesis when used as the support of ruthenium catalysts rather than when used as the dopant. The activity of Ru/lanthana was superior to other metal oxide-supported ones such as Ru/MgO. The activity, Ru dispersion, BET surface area, and the amount of hydrogen consumption of Ru/CeO2 ii ere influenced remarkably by hydrogen treatment, suggesting the SMSI phenomena. Partially reduced CeO2 donates electrons to Ru atoms, forming the active sites.

引用

页码：3 / 4

页数：2

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