Infrared study of catalytic reduction of lean NOx with alcohols over alumina-supported silver catalyst

被引：62

作者：

Ukisu, Y ^{[1
]}

Miyadera, T ^{[1
]}

Abe, A ^{[1
]}

Yoshida, K ^{[1
]}

机构：

[1] RIKEN CORP, KUMAGAYA, SAITAMA 360, JAPAN

来源：

CATALYSIS LETTERS | 1996年 / 39卷 / 3-4期

关键词：

lean NOx; catalytic reduction; ethanol; methanol; silver; alumina;

D O I：

10.1007/BF00805593

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：

Two intense IR absorption bands due to surface isocyanate (-NCO) species have been observed at 2262 and 2232 cm(-1) when an alumina-supported silver catalyst is exposed to a mixture of NO, O-2 and ethanol at 150 degrees C and subsequently heated to > 300 degrees C in vacuum. The intensity of the isocyanate band is hardly affected by the water existing in the mixture. Methanol is less reactive than ethanol for the formation of isocyanate species. The reaction mechanism of catalytic reduction of lean NOx with alcohols is discussed based on these IR spectroscopic findings.

引用

页码：265 / 267

页数：3

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