Low-Medium Temperature-Selective Catalytic Reduction of NO with NH 3 over a Mn/Co-MOF-74 Catalyst.
Zhonghao SunXue MiYichen LuoSiyuan WangBo YuanRunlong HaoYi ZhaoPublished in: ACS omega (2021)
To realize the selective catalytic reduction of NO at low-medium temperatures and avoid secondary pollution, a highly active catalyst Mn/Co-MOF-74 was synthesized. X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetric analysis, Brunauer-Emmett-Teller method, and scanning electron microscopy were employed to analyze the physicochemical properties of catalysts with different Mn/Co molar ratios and conjecture about the difference in the catalytic activity. Meanwhile, the effects of the molar ratio of Mn/Co, catalyst dosage, catalyst synthesis conditions, GHSV, and temperature on the NO conversion efficiencies were investigated and found that an optimal NO conversion efficiency of 93.5% was obtained at 200-225 °C. In the end, the stability of Mn/Co-MOF-74 was investigated and found that the catalyst has better sulfur and water resistance, and the NO conversion mechanism was speculated on the basis of characterizations and literature data.
Keyphrases
- metal organic framework
- electron microscopy
- room temperature
- high resolution
- ionic liquid
- systematic review
- heavy metals
- highly efficient
- magnetic resonance imaging
- machine learning
- atomic force microscopy
- single molecule
- electronic health record
- transition metal
- reduced graphene oxide
- crystal structure
- gold nanoparticles
- mass spectrometry
- climate change
- visible light