The mechanism for NOx storage

被引：200

作者：

Fridell, E ^{[1
]}

Persson, H ^{[1
]}

Westerberg, B ^{[1
]}

Olsson, L ^{[1
]}

Skoglundh, M ^{[1
]}

机构：

[1] Chalmers, Competence Ctr Catalysis, SE-41296 Gothenburg, Sweden

来源：

CATALYSIS LETTERS | 2000年 / 66卷 / 1-2期

关键词：

lean burn; nitrogen oxides; NO(x) storage catalyst; platinum; barium; NO(2); surface nitrates;

D O I：

10.1023/A:1019074901578

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 mechanisms for storing of NO(x) in platinum-barium-alumina catalysts during lean-rich transients are investigated. Oxidation of NO to NO(2) is found to be an important step. NO(2) is found to be important for oxidation of the catalyst or of nitrites to form nitrates. NO(x) is then stored in the form of surface nitrates. FTIR studies show no formation of bulk nitrates in these experiments.

引用

页码：71 / 74

页数：4

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