Mo-Doped CeO₂-TiO₂ Catalyst

Resists SO₂ & H₂O poisoning

Maintains NH₃-SCR activity under simultaneous SO₂ and H₂O exposure by suppressing sulfate deposition.

Yang, Zhengda · Zhang, Guomeng · Sun, Xin · Xiang, Zhang · Jiang, Ye

Journal of Hazardous Materials 2025

Advantages

Mo doping leads to higher NH₃ and lower NO adsorption on sulfated catalyst, reducing inert surface nitrate formation

Mo doping effectively lowers the H₂O dissociation barrier, favoring competitive NH₃ adsorption

Compared to CeO₂-TiO₂, SO₂ adsorption energy and oxidation ability on CeMoTi are lower, hindering SO₃ formation/desorption