A role of surface nitrite and nitrate complexes in NOx selective catalytic reduction by hydrocarbons under oxygen excess

被引：70

作者：

Sadykov, VA

Baron, SL

Matyshak, VA

Alikina, GM

Bunina, RV

Rozovskii, AY

Lunin, VV

Lunina, EV

Kharlanov, AN

Ivanova, AS

Veniaminov, SA

机构：

[1] RUSSIAN ACAD SCI,NN SEMENOV CHEM PHYS INST,MOSCOW 117334,RUSSIA

[2] RUSSIAN ACAD SCI,AV TOPCHIEV PETROCHEM SYNTH INST,MOSCOW 117912,RUSSIA

[3] MOSCOW MV LOMONOSOV STATE UNIV,DEPT CHEM,MOSCOW 119899,RUSSIA

来源：

CATALYSIS LETTERS | 1996年 / 37卷 / 3-4期

关键词：

TPD; cation-exchanged zeolites; modified zirconias; nitrite; nitrate; catalytic activity; NO selective reduction by hydrocarbons;

D O I：

10.1007/BF00807747

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：

NO adsorption over three types of catalytic systems, such as cation-exchanged zeolites, transition metal oxides supported on gamma-Al2O3, and partially stabilised tetragonal ZrO2 (PSZ) was studied by using the TPD method. NO forms several surface complexes having different desorption temperatures. TPD results compared with catalytic properties of these systems in the selective reduction of NOx by propane under oxygen excess showed that strongly bound nitrites and nitrates appeared to be true intermediates in this reaction.

引用

页码：157 / 162

页数：6

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