Effect of Y doping on oxygen vacancies of TiO2 supported MnOX for selective catalytic reduction of NO with NH3 at low temperature

► NO removal is enhanced on the Y-doped MnOX/TiO2 catalysts for low-temperature SCR. ► Y doping can increase oxygen vacancies for charge compensation on the catalysts. ► Oxygen vacancies by Y doping are responsible for the high catalytic activity.