共 50 条
Low temperature NH3-SCR reaction over MnOx supported on protonated titanate
被引:19
|作者:
Wang, Tianyou
[1
]
Sun, Kai
[1
]
Lu, Zhen
[1
]
Zhang, Yajun
[1
]
机构:
[1] Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China
关键词:
Low temperature NH3-SCR;
MnOx;
Protonated titanate;
SELECTIVE CATALYTIC-REDUCTION;
NITRIC-OXIDE;
AMMONIA;
NO;
NANOTUBES;
NH3;
D O I:
10.1007/s11144-010-0209-8
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:
In the present work, protonated titanate nanoribbons were prepared by hydrothermal treating of TiO2 in alkali solution, followed by a thorough acid washing. The protonated titanate nanoribbons were employed as novel support for MnOx species and MnOx/protonated titanate was studied as a promising catalyst for the low temperature NH3-SCR reaction. The maximal NO conversion of ca. 98% was achieved over MnOx/protonated titanate at 200 A degrees C under high GHSV of 50000 h(-1). The existence of both MnO2 and Mn2O3 as active Mn species on protonated titanate was confirmed by XPS analysis, which was responsible for the high deNO(x) activity of MnOx/protonated titanate in NH3-SCR reaction.
引用
收藏
页码:153 / 161
页数:9
相关论文