21:I[432972,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/1270dead247da766.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/2d7aa753e81324a8.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/263f2cdcb9aa2341.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 22:T515,Mn-based catalysts preferred in low-temperature selective catalytic reduction (SCR) are susceptible to SO₂ poisoning. The stubborn sulfates make insufficient O₂ activation and result in deficient reactive oxygen species (ROS) for activating reaction molecules. H₂O has long been regarded as an accomplice to SO₂, hastening catalyst deactivation. However, such a negative impression of the SCR reaction was reversed by our recent research. Here, we reported a H₂O contribution over Mn-based SCR catalysts to counteract SO₂ poisoning through accessible O₂ activation, in which O₂ was synergistically activated with H₂O to generate ROS for less deactivation and more expected regeneration. The resulting ROS benefited from the energetically favorable route supported by water-induced E_a reduction and was actively involved in the NH₃ activation and NO oxidation process. Besides, ROS maintained high stability over the SO₂ + H₂O-deactivated γ-MnO₂ catalyst throughout the mild thermal treatment, achieving complete regeneration of its own NO disposal ability. This strategy was proven to be universally applicable to other Mn-based catalysts.

#	Concept	H-Index	Publications	Citations
1	Engineering	1	1	28
2	Chemical Engineering	1	1	28
3	Chemistry	1	1	28
4	Materials Science	1	1	28
5	Catalysis	1	1	28

	Year	Citations

About

Top Concepts