Enhancing the low temperature NH₃-SCR activity of FeTiO _x catalysts via Cu doping: a combination of experimental and theoretical study.

ABSTRACT: A series of Fe _α Cu_1-α TiO _x catalysts with variable Cu doping amounts was directly synthesized by the sol-gel method and their catalytic performances were tested for the selective catalytic reduction of NO with ammonia. The highest activity was achieved on Fe_0.9Cu_0.1Ti catalyst. NO conversion was above 80% and N₂ selectivity exceeded 90% on this catalyst in the temperature range of 200-375 °C. High NO and NH₃ oxidation activities facilitated the high NH₃-SCR activities of the catalysts in the low temperature range, while too strong NH₃ oxidation ability resulted in the decline of NH₃-SCR activity. DFT calculations based on the Fe and Cu co-doping TiO₂

SUBMITTER: Cheng K 

PROVIDER: S-EPMC9080720 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature