FTIR Studies on NO Adsorption on [Co+Mg(Sr)] /ZSM-5

被引：0
|
作者：
LEE C. W.
CHONG P. J.
机构：
[1] KRICT
[2] Korea
[3] Taejon 305-606
来源：
Chemical Research in Chinese Universities | 2002年 / 04期
关键词：
Infrared spectroscopy; Nitric oxide; Adsorption; Mononitrosyl; Dinitrosyl; Cobalt oxide;
D O I：
暂无
中图分类号：
O647.3 [吸附];
学科分类号：
070304 ; 081704 ;
摘要：
The adsorption of NO on /ZSM-5 zeolites with different contents was studied by means of FTIR spectroscopy. The dominant NO species adsorbed on /ZSM-5 was found to be in a dinitrosyl form, as demonstrated by the IR bands at 1 813 and 1 896 cm -1. NO was adsorbed in a mononitrosyl form as shown in the region of 1 937-1 939 cm -1 as a minor species. Samples /ZSM-5 showed a new band near 1 858 cm -1（w） attributable to the species of Co3O4-NO. It was found that zeolite /ZSM-5 exhibits superior performance characteristics for SCR of NO molecules, and is promising as a useful catalyst. The typical catalyst /ZSM-5 for SCR resulted from the collaboration of the metal alkalinity and the ionic radius of the metal（such as Mg or Sr）.
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页码：389 / 392
页数：4
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