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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