Identification of active oxygen species for soot combustion on LaMnO3 perovskite

Active oxygen species for soot combustion with O-2 on LaMnO3 were identified as O-2(2-), O-2(n-) (1 < ono < 2) and O-2(m-) (0 < omo < 1) for the first time using in situ Raman spectroscopy during temperature-programmed oxidation (TPO) from room temperature to higher temperatures.