ENHANCEMENT EFFECT OF MG2+ ION ON DIRECT NITRIC-OXIDE DECOMPOSITION OVER SUPPORTED PALLADIUM CATALYSTS

被引：23

作者：

OGATA, A

OBUCHI, A

MIZUNO, K

OHI, A

AOYAMA, H

OHUCHI, H

机构：

[1] Atmospheric Environment Protection Department, National Research Institute for Pollution and Resources, Tsukuba, Ibaraki, 305

来源：

APPLIED CATALYSIS | 1990年 / 65卷 / 02期

关键词：

decomposition; magnesium; nitric oxide; palladium;

D O I：

10.1016/S0166-9834(00)81582-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Direct decomposition of nitric oxide to nitrogen and oxygen was investigated on supported palladium catalysts at 550-750°C. It was found that nitric oxide decomposition activities of Pd/MgAl2O4, Pd/MgO, Pd/Mg2Si3,O8 and Pd/MgZrO3, all of which included Mg2+ ions as the constituent of the oxides, were higher than those of Pd/γ-Al2O3, Pt/γ-Al2O3, and Cu/ZSM-5 in this temperature range. Furthermore, Mg2+ ions doped in Pd/γ-Al2O3 enhanced the catalytic activity. These results led us to conclude that Mg2+ ions on palladium catalysts play an important role in enhancing the decomposition activity. © 1990.

引用

页码：L11 / L15

页数：5

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