Department of Environmental Energy Systems Engineering, Graduate School of Kyonggi University, Gyeonggi-do, Republic of Korea.
J Air Waste Manag Assoc. 2011 May;61(5):552-8. doi: 10.3155/1047-3289.61.5.552.
This study investigated the effect of adding vanadium (V) to natural manganese oxide (NMO) in ammonia (NH3) selective catalytic reduction (SCR). The addition of V to NMO decreased the catalytic activity at low temperatures by blocking the active site. However, the enhancement of catalytic activity was achieved by controlling NH3 oxidation at high temperatures. From the NH3 temperature programmed desorption and oxygen on/off test, it was confirmed that the amount of Lewis acid site and active lattice oxygen of the catalyst affects the catalytic performance at low temperature.
本研究考察了在氨（NH3）选择性催化还原（SCR）中添加钒（V）对天然氧化锰（NMO）的影响。V 的添加会通过堵塞活性位来降低低温下的催化活性。然而，通过控制高温下的 NH3 氧化，可以提高催化活性。通过 NH3 程序升温脱附和氧的开/关测试，证实了催化剂的Lewis 酸位和活性晶格氧的数量会影响低温下的催化性能。
