Synthesis of HKUST-1#MCF compositing materials for CO2 adsorption

• Composites of HKUST-1 and functionalized siliceous mesocellular foam was fabricated.
• Extra porous structures were formed at the interface of MCF-x and HKUST-1 crystals.
• Higher CO2 uptakes were obtained on the composites as compared with pure components.

A series of compositing materials comprise HKUST-1 and siliceous mesocellular foam (MCF) was successfully fabricated following a one-pot method. The effect of MCF functionalization on the formation, structure properties, and performance in CO2 adsorption of the composting materials was investigated. All the composites were interestingly showing higher CO2 uptakes as compared with either the pure HKUST-1 or the MCF-x owing to the newly formed porous structures at the interface of the two components, the best performing sample, HK#MCF-NH2, exhibited a promising CO2 adsorption capacity of 3.89 mmol/g (25 °C, 1 bar) with excellent cyclic stability and selectivity over N2.

Composites from HKUST-1 and functionalized siliceous mesocellular foam with additional porous structure at the interface were prepared, which showed a synergetic effect leading to enhanced CO2 adsorption capacities.Figure optionsDownload as PowerPoint slide