One-step synthesized SO42--TiO2 withexposed (001) facets and its application in selective catalytic reduction of NO by NH3

被引：8
|
作者：
Wen, Yexuan [1 ,2 ]
Cao, Shuang [1 ,2 ]
Fei, Xiaoqi [1 ,2 ]
Wang, Haiqiang [1 ,2 ]
Wu, Zhongbiao [1 ,2 ]
机构：
[1] Zhejiang Univ, Coll Environm & Resources Sci, Key Lab Environm Remediat & Ecol Hlth, Minist Educ, Hangzhou 310058, Zhejiang, Peoples R China
[2] Zhejiang Prov Engn Res Ctr Ind Boiler & Furnace F, Hangzhou 310027, Zhejiang, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2018年 / 39卷 / 04期
基金：
国家重点研发计划;
关键词：
Anatase TiO2; Sulfation; (001) facets; Ceria; Selective catalytic reduction; IN-SITU DRIFTS; ANATASE TIO2; ALKALI RESISTANCE; TEMPERATURE SCR; FT-IR; OXIDATION; SURFACE; PERFORMANCE; MECHANISM; REACTIVITY;
D O I：
10.1016/S1872-2067(18)63034-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A sample of sulfated anatase TiO2 with high-energy (001) facets (TiO2-001) was prepared by a simple one-step hydrothermal route using SO42- as a morphology-controlling agent. After doping ceria, Ce/TiO2-001 was used as the catalyst for selective catalytic reduction (SCR) of NO with NH3. Compared with Ce/P25 (Degussa P25 TiO2) and Ce/P25-S (sulfated P25) catalysts, Ce/TiO2-001 was more suitable for medium- and high-temperature SCR of NO due to the high surface area, sulfation, and the excellent properties of the active-energy (001) facets. All of these facilitated the generation of abundant acidity, chemisorbed oxygen, and activated NO, adsorption species, which were the important factors for the SCR reaction. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：771 / 778
页数：8
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