Metal-organic framework assisted preparation of α-Fe2O3 for selective catalytic reduction of NOX with NH3

被引：6
作者：
Hu, Yuting [1 ,2 ,3 ]
Cheng, Ting [1 ,2 ,3 ]
Jiang, Zhaozhong [1 ,2 ,3 ]
Qin, Kai [1 ,2 ,3 ]
He, Han [1 ,2 ,3 ]
Zhu, Chengzhu [1 ,2 ,3 ,4 ]
机构：
[1] Hefei Univ Technol, Sch Resource & Environm Engn, Hefei 230009, Peoples R China
[2] Hefei Univ Technol, Inst Atmospher Environm & Pollut Control, Hefei 230009, Peoples R China
[3] Hefei Univ Technol, Anhui Higher Educ Inst, Key Lab Nanominerals & Pollut Control, Hefei 230009, Peoples R China
[4] Low Temp Denitrat Engn Res Ctr Anhui Prov, Hefei 230001, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2024年 / 329卷
关键词：
Nitric oxide; Denitration; Fe-MIL-101-NH2; NH3-SCR; Stability; OXIDE CATALYSTS; FE; OXIDATION;
D O I：
10.1016/j.jssc.2023.124420
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Fe-MIL-101-NH2 was prepared by solvothermal method with ferric nitrate and 2-Aminoterephthalic Acid (DBC-NH2), and Fe-MIL-101-NH2 as precursor was calcined to prepare alpha-Fe2O3 catalyst. The optimum synthesis condition and the NO conversion efficiency of alpha-Fe2O3 were systematically investigated, and its crystallinity, micro-morphology and surface acidity were characterized. The results showed that alpha-Fe2O3 over calcination at 400 degrees C for 1 h had excellent catalytic activity, SO2 tolerance, water resistance, and stability. When an initial NO concentration of 500 ppm, the gas hourly space velocity (GHSV) of 35000 h-1, and a reaction temperature of 350 degrees C, the NO conversion efficiency of alpha-Fe2O3 remained above 90 %. The crystal structure of the catalyst was alpha-Fe2O3 which retained the original octahedral morphology of Fe-MIL-101-NH2 and increased a lot of new pores, leading to more abundant Lewis acid sites for promoting NO conversion efficiency.
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页数：9
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