It was noticed by multiple studies that presence of oxygenated species on the catalyst does not always reduce catalytic activity. Gómez-Marín et al. discussed the importance of distinguishing between the presence of adsorbed oxygenated species and the presence of a stable oxide-like phase. To understand if all sites are indeed blocked or could instead be reduced, we perform a deletion energy analysis. For each of our configurations we manually remove surface oxygen one after the other. For each of them we calculate the predicted deletion energies ∆G del O (Equation ).