催化作用
氧化还原
选择性催化还原
形态学(生物学)
吸附
化学
热液循环
材料科学
氧气
核化学
化学工程
无机化学
有机化学
遗传学
生物
工程类
作者
Bo Qin,Rui‐tang Guo,Jiang Zhou,Lin-gang Wei,Tian-yi Yin,Weiguo Pan
标识
DOI:10.1016/j.apsusc.2022.153823
摘要
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 °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.
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