The effect of Si/Al ratio on selective catalytic reduction of NOx with NH3 over Pt/Al-SBA-15

被引：3
|
作者：
Kang, Min [1 ]
Park, Jae Hyun [2 ]
Park, Eun Duck [2 ]
Kim, Ji Man [3 ]
Kim, Dae Jung [4 ]
Yie, Jae Eui [1 ]
机构：
[1] Ajou Univ, Dept Appl Chem, Suwon 443749, South Korea
[2] Ajou Univ, Div Energy Syst Res, Suwon 443749, South Korea
[3] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea
[4] Texas Tech Univ, Dept Chem & Biotechnol, Lubbock, TX 79409 USA
来源：
NANOCOMPOSITES AND NANOPOROUS MATERIALS VIII | 2008年 / 135卷
关键词：
NH3-SCR; Pt; Al-SBA-15; aluminum content; low temperature;
D O I：
10.4028/www.scientific.net/SSP.135.61
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The selective catalytic reduction of NOx with NH3 (NH3-SCR) was investigated over Pt catalysts supported on various supports such as alumina, ZSM-5, SBA-15, and Al-SBA-15 with different amounts of alumina. Among them, Pt catalysts supported on Al-SBA-15 showed the higher NOx conversion at low temperatures than those of others. These also showed high NOx conversions over a wide reaction temperature. As the Si/Al ratio in Al-SBA-15 decreased, the NH3-SCR activity increased. This was closely related to the amount of strongly-adsorbed NH3.
引用
收藏
页码：61 / +
页数：2
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