Figure shows acetone, hydrogen, carbon monoxide and carbon dioxide evolution of both samples, figure shows absolute acetone, hydrogen and carbon dioxide evolution as well as 2-propanol and oxygen conversion of both samples in temperature programmed partial oxidation experiments. In both samples, acetone is evolved from oxidative dehydrogenation from approximately 90 °C and 120 °C. The evolution of hydrogen, carbon monoxide and carbon dioxide start at 270 °C simultaneously and are the result of partial oxidation processes, which are favoured at the higher oxygen level still not sufficient for complete total combustion at the cost of acetone formation. Both 2-propanol conversion and oxygen conversion are higher or equally high, respectively in the larger crystallite size sample than in the smaller crystallite size sample at temperatures up to 250 °C. Starting from 300 °C, when partial oxidation processes are the predominant reaction pathway, 2-propanol and oxygen conversion are higher in the smaller crystallite size sample. At temperatures up to 250 °C, the oxygen conversion in the larger crystallite size sample is much higher than the actual product evolution would require, which was already observed in the oxidative dehydrogenation experiments (see figure ). The absolute values of carbon monoxide evolution are not displayed as m/z = 28 is a fragment of carbon dioxide and to a very low extend of 2-propanol and acetone as well. Corrections are considered as too speculative.