Titanium hydrazide gels for Kubas-type hydrogen storage

Titanium(III) hydrazide gels designed for Kubas-type hydrogen storage were synthesized from the reaction between tris(bis(trimethylsilyl)methyl) titanium and anhydrous hydrazine. The materials demonstrate a fully reversible H2 adsorption capacity of 2.63 wt% and 36.7 kg m−3 at 298 K and 143 bar without saturation. Interaction between the adsorption center and H2 gas was probed by electron paramagnetic resonance.