Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 289, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2020.121464
Keywords
Manganese oxides; NH3-SCR; Challenges; Opportunities; Practical application
Funding
- National Key RAMP
- D Program of China [2018YFA0702003]
- National Natural Science Foundation of China [21890383, 21671117, 21871159]
- Beijing Municipal Science and Technology Commission [Z191100007219003]
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Manganese oxides (MnOx) have attracted increasing attention in selective catalytic reduction of NOx with NH3 (NH3-SCR) due to their excellent low-temperature catalytic activities. However, MnOx still suffer from poor resistance to SO2 and H2O in NH3-SCR. In particular, the irreversible poisoning of SO2 limits their practical applications in NH3-SCR. With the new regulations concerning the emission of SO2 gas, MnOx may be used for control over NOx (i.e. NO and NO2) emission in NH3SCR. This mini-review was devoted to challenges and opportunities of MnOx catalysts in NH3-SCR, which may be helpful for its practical application in NH3-SCR system.
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