Insight into the promotional mechanism of Cu modification towards wide-temperature NH3-SCR performance of NbCe catalyst

• Published in: Chinese journal of chemical engineering Vol. 50; no. 10; pp. 301 - 309
• Main Authors: An, Dongqi, Yang, Yuyao, Zou, Weixin, Cai, Yandi, Tong, Qing, Sun, Jingfang, Dong, Lin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2022; Key Laboratory of Mesoscopic Chemistry of MOE,School of Chemistry and Chemical Engineering and Jiangsu Key Laboratory of Vehicle Emissions Control,Nanjing University,Nanjing 210093,China%Center for Nanochemistry,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China%Jiangsu Key Laboratory of Vehicle Emissions Control,School of Environment,Nanjing University,Nanjing 210093,China%Jiangsu Key Laboratory of Vehicle Emissions Control,Center of Modern Analysis,Nanjing University,Nanjing 210093,China%Key Laboratory of Mesoscopic Chemistry of MOE,School of Chemistry and Chemical Engineering and Jiangsu Key Laboratory of Vehicle Emissions Control,School of Environment,Center of Modern Analysis,Nanjing University,Nanjing 210093,China
• Subjects: Cu modification; Fast-SCR; Flue gas; NbCe catalyst; NH3-SCR; NO2 promoting effect; NH3-SCR; Fast-SCR; Cu modification; Flue gas; NO2 promoting effect; NbCe catalyst

[Display omitted] A simple strategy of Cu modification was proposed to broaden the operation temperature window for NbCe catalyst. The best catalyst Cu0.010/Nb1Ce3 presented over 90% NO conversion in a wide temperature range of 200–400 °C and exhibited an excellent H2O or/and SO2 resistance at 275 °...