Solid-Phase Hydrogen Storage Based on NH₃BH₃-SiO₂ Nanocomposite for Thermolysis

Figure 6

FTIR spectra of AB-SiO₂ NP composite before (black solid line) and after (red solid line) the thermal dehydrogenation reaction. H₂ gas evolution increases the bond order along the principal axis of AB. Therefore, the B-N stretching frequencies are upshifted, and the B-H and N-H stretching intensities decrease simultaneously.