Supplementary Figure 1: 1H MAS NMR spectra (9.4 T, 10 kHz MAS) showing the changes in 1H environments in Ge-UTL occurring during hydrolysis at 100 °C in water.
3 p.p.m. – Sharp peak from non-coordinated water; 4-10 p.p.m. - Unresolved hydroxyls. No proton signals other than minimal probe background is observed for calcined Ge-UTL.
