Catalytic removal of nitric oxide with hydrogen and carbon monoxide in the presence of excess oxygen

被引：126

作者：

Yokota, K

Fukui, M

Tanaka, T

机构：

[1] Toyota Ctrl. R. and D. Labs., Inc., Aichi-gun, Aichi-ken 480-11, 41-1, A. Yoko., O. Naga., Nasa.-cho

来源：

APPLIED SURFACE SCIENCE | 1997年 / 121卷

关键词：

D O I：

10.1016/S0169-4332(97)00305-X

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：

Catalytic NOx removal with H-2 in the presence of an excess of oxygen was studied. A Pt/zeolite catalyst has a high NOx conversion efficiency, but has the disadvantages of being strongly poisoned by CO and HCs such as C3H6 and the formation of N2O as a byproduct from NOx. By reducing the oxidation efficiency of Pt, we have developed an improved catalyst, Pt-Mo-Na/SiO2, which has a higher temperature range of NOx conversion and a lower N2O byproduct formation, than conventional Pt catalysts. This idea was supported by IR and XPS data of the catalyst. (C) 1997 Elsevier Science B.V.

引用

页码：273 / 277

页数：5

共 4 条

[1]

GALLEZOT P, 1983, J CATAL, V79, P396

[2] STRUCTURES AND CATALYTIC ACTIVITY OF PT-MO BIMETALLIC ENSEMBLES DERIVED FROM A NEW PLANAR [PTMO6O24]8- HETEROPOLYANION SUPPORTED ON AL2O3 AND SIO2 [J].