Fig. 6

TGA and ¹H NMR data comparison. a ¹H NMR signal areas determined at various temperatures (25, 90, 150, 300, and 450 °C); these results are compared to the total water quantity (H₂O_mol +hydroxyl species) found by TGA at each temperature. They are well correlated. b Deconvoluted ¹H NMR signal (at 25 °C)