Low temperature NH3-SCR reaction over MnOx supported on protonated titanate

被引：20
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
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2010年 / 101卷 / 01期
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.
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收藏
页码：153 / 161
页数：9
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