NH3选择催化还原(NH3-SCR)是去除柴油车尾气中NOx应用广泛的技术,具有高效性.我们以金属氧化物类催化剂的制备和性能为主题,综述了近几年V、Ce、Fe、Mn基金属氧化物催化剂的发展.总结了这几类催化剂的合成、物理化学性质、微观结构、抗硫性和水热稳定性等特点,并对该类催化剂未来的发展趋势做了展望.
Selective catalytic reduction( SCR) with ammonia is considered to the efficiency widely used technology for reducing NOx,which is from emission of diesel. The investigate progress in this field of NH3-SCR catalysts is summarized,including V-based,Ce-based,Fe-based,Mn-based and other oxide catalysts around preparations procedure and catalytic performance. Synthesis method of catalysts,physicochemical property,microstructure and durability of SO2 and H2O has been concluded. The future development for these catalysts is present in the paper.