Phase structure of V2O5/TiO2 catalyst and catalytic behavior with removal of NO by ammonia

被引：4
|
作者：
Zhang, Xin [1 ]
Li, Xiaogang [1 ]
Wu, Junsheng [1 ]
Yang, Renchun [1 ]
Zhang, Zhihua [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] PetroChina Daqing Petrochem Res Ctr, Daqing 163714, Peoples R China
来源：
CATALYSIS LETTERS | 2009年 / 132卷 / 1-2期
关键词：
V2O5/TiO2; Phase structure; Catalytic activity; V2O5/SULFATED TIO2 CATALYST; REDUCTION; OXIDATION; NH3; SPECTROSCOPY; STABILITY; SCR;
D O I：
10.1007/s10562-009-0096-7
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：
V2O5/TiO2 catalyst with 3% (w/w) V loading has been prepared by sol-gel method. The characterization results of the catalyst structure and catalytic activity show that VO (X) state is strongly dependent on the calcination temperature. Little effect is found for phase structure of TiO2 support on catalytic activity. High catalytic activity in wide temperature range (240-420 A degrees C) is observed for the catalysts calcinated at different temperatures at a space velocity of 50,000 h(-1). Space velocity and alkali metal oxides strongly influence the catalytic activity of the catalyst which was calcinated at 450 A degrees C, furthermore, the one has high tolerance to SO2 in our test conditions.
引用
收藏
页码：253 / 258
页数：6
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