Simultaneous removal of NOx and soot particulates from diesel engine exhaust by 3DOM Fe-Mn oxide catalysts
Simultaneous removal of NOx and soot particulates from diesel engine exhaust by 3DOM Fe-Mn oxide catalysts
复制标题
3DOM Fe-Mn 氧化物催化剂同时去除柴油发动机排气中的 NOx 和烟灰颗粒
DOI：
10.1016/j.jiec.2018.02.002
复制
发表时间：
2018
影响因子：
6.1
通讯作者：
Xiao Zhang
中科院分区：
文献类型：
--
作者：
Junbin Tan;Yuechang Wei;Yuanqing Sun;Jian Liu;Zhen Zhao;Weiyu Song;Jianmei Li;Xiao Zhang
采用胶体晶体模板法制备了一系列三维有序大孔(3DOM)铁锰氧化物催化剂，并考察了其对碳烟和NOx的催化性能。3DOM Fe1-Mn3-Ox型催化剂对碳烟和NOx的脱除活性最高。碳烟燃烧的最高CO2浓度(Tm)为435℃，80%NOx转化的最高温度为302-485℃。3DOM Fe1-Mn3-Oxis的高催化活性是由于其丰富的氧空位、良好的还原性能和足够的酸中心。低成本催化剂的使用将有利于实际应用。
A series of three-dimensionally ordered macroporous (3DOM) Fe–Mn oxide catalysts are prepared using the colloidal crystal template method, and their catalytic performance is tested for eliminating soot and NOx. The 3DOM Fe1–Mn3–Oxcatalyst exhibits the highest activity for eliminating soot and NOx. The temperature of maximum CO2concentration (Tm) for soot combustion is 435 °C, and that for 80% NOxconversion is 302–485 °C. The high catalytic activity of 3DOM Fe1–Mn3–Oxis due to its abundant oxygen vacancies, excellent reducibility, and sufficient acid sites. The use of low-cost catalysts will be beneficial for practical applications.