期刊
APPLIED SURFACE SCIENCE
卷 598, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2022.153823
关键词
NH3-SCR; Flower-like TiO2; MnCe/TiO2-FL; Acidity and redox performance
类别
资金
- National Key R & D Pro-gram of China [2018YFB0605002]
A flower-like MnCe/TiO2 catalyst was synthesized via hydrothermal method and exhibited excellent SCR performance and resistance to SO2 and H2O. The catalyst possessed a larger surface area, higher Ce3+ and Mn4+ content, superior surface acidity and redox performance, which greatly improved the SCR performance.
In this work, a flower-like TiO2 support was firstly synthesized via the hydrothermal method, and then Mn and Ce were loaded onto the synthesized flower-like TiO2 carrier by impregnation for the selective catalytic reduction of NO with NH3 (NH3-SCR). The activity test results manifested that the flower-like MnCe/TiO2 (MnCe/TiO2-FL) catalyst exhibited marvelous SCR performance (almost 100% NO conversion in the range of 150-250 degrees C) and satisfactory resistance to SO2 and H2O. Based on a series of characterization experiments, it could be found that the MnCe/TiO2-FL catalyst possessed a larger surface area, higher Ce3+ and Mn4+ content, superior surface acidity and redox performance, which greatly ameliorated to the SCR performance of the MnCe/TiO2-FL catalyst. Furthermore, the accelerated surface adsorbed oxygen mobility and the increased quantity of active species also promoted to the SCR activity of MnCe/TiO2-FL at low temperatures.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据