A mixture of TiF 3 -doped NaH/Al was directly used as the starting material, and hydrogenated singly in order to study the chemical state and role of Ti species in hydrogenation. X-ray absorption spectroscopy shows that Ti 3+ was essentially reduced to Ti 0 and formed Ti−Al clusters during the doping, i.e. the ball-milling process. The local environment around Ti atoms in the clusters became homogeneous and ordered after hydrogenation at 100−140 °C. The Ti−Al clusters are believed to be the catalyzing agent for the dissociation of the hydrogen molecule and the subsequent formation of the hydride.
No takes yet. Share an insight, caveat, or question.
Fang et al. (2007) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: