|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Energy Technologies and CO2 Management Symposium
||MnOx-decorated Fe-Zr based Nano-catalysts for Low Temperature NH3-SCR: Improvement of Catalytic Activity
||Chen Yang, Jian Yang, Qingrui Jiao, Yuanmeng Tian, Qingcai Liu, Shan Ren, Jiangling Li
|On-Site Speaker (Planned)
MnOx modified Fe-Zr based nano-catalysts (donated as Mn(co)/Fe-Zr and Mn(im)/Fe-Zr) were synthesized with the co-precipitation impregnation method and impregnation method, respectively, and then were used for low-temperature selective catalytic reduction of NO with NH3 (SCR). Among these catalysts, the Mn(co)/Fe-Zr catalyst exhibits the highest NH3-SCR activity (94%) at 225°C when WHSV=300000 mL•g-1•h-1. Meanwhile, the properties of catalysts had been characterized by XRD、BET、XPS and H2-TPR. As determined by BET, the addition of MnOx increased the surface area and pore volume of the catalyst. The XRD results suggest that the Mn(co)/Fe-Zr possessed highly dispersed MnOx on the surface of the catalyst. The results of XPS revealed that the Mn(co)/Fe-Zr had highest concentrations of Mn4+ and Fe3+.