Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4506 - 4506
Published: Sept. 23, 2024
Selective catalytic reduction of nitrogen oxides (NOx) with ammonia (NH3-SCR) has been implemented in response to the regulation NOx emissions from stationary and mobile sources above 300 °C. However, development NH3-SCR catalysts active at low temperatures below 200 °C is still needed improve energy efficiency cope various fuels. In this review article, recent reports on low-temperature are systematically summarized. The redox property as well surface acidity two main factors that affect activity. strong beneficial for activity but responsible N2O formation. multiple electron transfer system more plausible controlling properties. H2O SOx, which often found flue gas, have a detrimental effect activity, especially temperatures. competitive adsorption can be minimized by enhancing hydrophobic catalyst. Various strategies resistance SOx poisoning also discussed.
Language: Английский