biostudies-literatureUnknown11(37)Sun XA series of MO x -Cr2O3-La2O3/TiO2-N (M = Cu, Fe, Ce) catalysts with nitrogen doping were prepared via the impregnation method. Comparing the low-temperature NH3-SCR activity of the catalysts, CeCrLa/Ti-N (xCeO2-yCr2O3-zLa2O3/TiO2-N) exhibited the best catalytic performance (NO conversion approaching 100% at 220-460 °C). The physico-chemical properties of the catalysts were characterized by XRD, BET, SEM, XPS, H2-TPR, NH3-TPD and in situ DRIFTS. From the XRD and SEM results, N doping affects the crystalline growth of anatase TiO2 and MO x (M = Cu, Fe, Ce, CrRSC advances22780-22788https://www.ebi.ac.uk/biostudies/studies/S-EPMC9034305biostudies-literatureImprovement of low-temperature NH3-SCR catalytic performance over nitrogen-doped MO x -Cr2O3-La2O3/TiO2-N (M = Cu, Fe, Ce) catalysts.PMC9034305Zhang XLiu QLiu SSun XfalseImprovement of low-temperature NH3-SCR catalytic performance over nitrogen-doped MO x -Cr2O3-La2O3/TiO2-N (M = Cu, Fe, Ce) catalysts.A series of MO x -Cr2O3-La2O3/TiO2-N (M = Cu, Fe, Ce) catalysts with nitrogen doping were prepared via the impregnation method. Comparing the low-temperature NH3-SCR activity of the catalysts, CeCrLa/Ti-N (xCeO2-yCr2O3-zLa2O3/TiO2-N) exhibited the best catalytic performance (NO conversion approaching 100% at 220-460 °C). The physico-chemical properties of the catalysts were characterized by XRD, BET, SEM, XPS, H2-TPR, NH3-TPD and in situ DRIFTS. From the XRD and SEM results, N doping affects the crystalline growth of anatase TiO2 and MO x (M = Cu, Fe, Ce, Cr2021-01-01T00:00:00Z2021 Jun2025-04-05T20:04:40.275Z2025-04-05T20:04:40.275ZS-EPMC90343053548044410.1039/d1ra03845a