Role of bifunctionality of ZrO2-based oxide systems in NO reduction with lower hydrocarbons

被引：7

作者：

Orlik, SN ^{[1
]}

Struzhko, VL ^{[1
]}

Mironyuk, TV ^{[1
]}

Tel'biz, GM ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, LV Pisarzhevsky Phys Chem Inst, Kiev, Ukraine

来源：

KINETICS AND CATALYSIS | 2003年 / 44卷 / 05期

关键词：

D O I：

10.1023/A:1026154425081

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：

The catalytic properties of transition metal oxides (Cr, Cc, and Co) supported on ZrO2 synthesized by various methods, as well as the effect of rhodium on the performance of the MexOy/ZrO2 oxide systems in NO reduction with hydrocarbons (methane, propane-butane mixture, and propene) were studied. The acidity of the surface of the catalysts was studied by IR spectroscopy and ammonia temperature-programmed desorption. The adsorption of NO, propene, and their mixture on the Rh-Cr2O3/ZrO2 and Rh-CeO2/ZrO2 catalysts at temperatures of 293-623 K was studied by IR spectroscopy. The adsorption and co-adsorption of the reactants was found to differ significantly depending on the nature of the surface. The activity of the catalysts studied in NO selective catalytic reduction with hydrocarbons is due to the presence of the acidic functional groups on their surface.

引用

页码：682 / 691

页数：10

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