POSS-based hybrid porous materials with exceptional hydrogen uptake at low pressure

•The choice of reactant concentration affects the porous properties of the obtained hybrid porous materials.•The BET specific surface area is up to 1080 m2 g−1.•The hydrogen uptake can reach to 2.00 wt.% at 1.0 bar and 77 K.

Hybrid porous materials based on AIBN initiated radical polymerization of octavinylsilsesquioxane in THF were reported in detail. The choice of reactant concentration has a major influence on their porous properties. The resulting hybrid porous materials exhibit high BET specific surface areas (up to 1080 m2 g−1) and exceptional hydrogen uptake (2.00 wt.% at 1.0 bar and 77 K).

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