Reaction of NO at low temperature by ACF loading urea and rare-earth element oxides (La2O3, CeO2)

被引:13
作者
Zeng, Zheng [1 ,2 ,3 ]
Lu, Pei [1 ,2 ]
Li, Caiting [1 ,2 ]
Zeng, Guangming [1 ,2 ]
Jiang, Xiao [1 ,2 ]
机构
[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China
[3] Arizona State Univ, Dept Civil & Environm Engn, Tempe, AZ 85287 USA
基金
中国国家自然科学基金;
关键词
NO; La2O3; CeO2; ACF; Urea; SELECTIVE CATALYTIC-REDUCTION; ACTIVATED CARBON-FIBER; ROOM-TEMPERATURE; NITRIC-OXIDE; AMMONIA; NH3; AIR;
D O I
10.1080/00958972.2012.686612
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Loaded catalysts of 10-50% (w/w) urea loaded on activated carbon fibers (ACF), referred to as urea/ACF, and 10% urea-5-15% (w/w) La2O3/ACF and CeO2/ACF were prepared by an impregnation method and used for removal of NO at low temperature (30-120 degrees C). The experimental results showed that the catalytic activity of urea/ACF could be greatly improved by loaded rare-earth element oxides. Furthermore, 10% urea-5% La2O3/ACF and 10% urea-10% CeO2/ACF could maintain high and stable catalytic activity at 100 degrees C.
引用
收藏
页码:1992 / 1998
页数:7
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