Performance regulation of Mn/TiO2 catalysts by surfactants for the selective catalytic reduction of NO with NH3 at low temperatures

被引：6
作者：
Li, Fengxiang [1 ,3 ]
Xie, Junlin [1 ,2 ]
Cui, Haifeng [1 ,3 ]
Gong, Pijun [1 ,3 ]
He, Feng [1 ,3 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China
[2] Wuhan Univ Technol, Res & Test Ctr Mat, Wuhan 430070, Hubei, Peoples R China
[3] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Hubei, Peoples R China
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2018年 / 125卷 / 02期
关键词：
NH3-SCR; MnOx/TiO2; catalysts; Performance regulation; Surfactants; MIXED-OXIDE CATALYSTS; NITRIC-OXIDE; SCR; NH3-SCR; FE; CU; STABILITY; OXIDATION; AMMONIA; SPINEL;
D O I：
10.1007/s11144-018-1433-x
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：
A series of Mn/TiO2 catalysts were prepared using different dosage of cetyl trimethyl ammonium bromide (CTAB) and polyethylene glycol (PEG) 600 as surfactants by sol gel method. When CTAB/Ti and PEG/Ti were 0.075 and 0.13, the morphology of the catalysts exhibited nano rod and regular sphere structure, respectively, and the activity was also the highest. The superior SCR activity of NC(0.075)-Mn/TiO2 and NP(0.13)-Mn/TiO2 catalysts was mainly due to the larger surface area and stronger reduction ability. In addition, it was found that the SCR activity of the catalysts with PEG600 as surfactants was generally higher than that of CTAB as surfactants, which may be due to its advantages in specific surface area, crystallinity, acidity, surface ion and chemisorbed oxygen concentration, and reducibility.
引用
收藏
页码：647 / 661
页数：15
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