HPW AlHPW WPMo AlHPMo L 1.1 1.5 4.6 5.2 B 4.5 2.5 8.5 7.8 L/B 0.2 0.6 0.5 0.7 Strength acid sites (mV) 850 862 843 866 Acid sites meq (n-Bta/g solid) 6 2 10 8

Table 1: Comparation between Lewis acid sites/Brönsted acid sites in the catalyst.