Catalyst activity and selectivity are evaluated in terms of propane conversion (𝑋 BCDBEFG ) and product selectivity (𝑆 BCDLMIN ), respectively. The propane conversion indicates the molar fraction of oxidized propane, i.e. propane converted to any of the possible products. The selectivity indicates the molar fraction of a specific product with respect to all products formed from propane. The gas hourly space velocity (GHSV), the ratio between the volumetric flow and the catalyst volume, is kept constant for all catalysts during the test (at 1000 h -1 ) to ensure a consistent comparison among materials. After the temperature variation, the GHSV and feed are varied and the spent catalyst is further analyzed. These steps beyond temperature variation are not discussed in this paper. The raw data used here are provided as ESI and the detailed experimental procedure is explained in the handbook.