Effect of surface pretreatment on the catalytic activity of atomized Ni3Al powder for methane steam reforming

被引：0
|
作者：
Ma, Yan [1 ]
Xu, Ya [1 ]
Dernura, Masahiko [1 ]
Hirano, Toshiyuki [1 ]
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN, VOL 32, NO 4 | 2007年 / 32卷 / 04期
关键词：
Ni3Al; surface pretreatment; catalytic activity; methane steam reforming;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Catalytic experiments were performed over atomized Ni3Al powder in the temperature range from 873 to 1223 K under the atmosphere of steam and methane (ratio of 1). The powder was treated by two kinds of two-step surface pretreatment before reaction. One is chemical treatment, acid leaching followed by alkali leaching. Another is steam treatment, oxidization in steam followed by reduction in hydrogen. It was found that the catalytic activity was significantly enhanced by both pretreatments, especially by the chemical treatment. The surface characterization of the pretreated powders revealed that the enhancement by the pretreatments was attributed to the formation of fine Ni particles on the surface.
引用
收藏
页码：971 / 974
页数：4
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