Mesoporous Amine-bridged Polysilsesquioxane for CO2 Capture

Abstract: a novel class of amine-supported sorbents based on amine-bridged mesoporous polysilsesquioxane was developed via a simple one-pot sol-gel process. The new sorbent allows the incorporation of a large amount of active groups without sacrificing surface area or pore volume available for CO2 capture, leading to a CO2 capture capacity of 3.2 mmol g-1 under simulated flue gas conditions. The sorbent is readily regenerated at 100 °C and exhibits good stability over repetitive adsorption-desorption cycling. Key words: Carbon dioxide capture; polysilsesquioxane; mesoporous; sorbent; post-combustion * Corresponding author