Fu Liling, Qi Genggeng, Shekhah Osama, Belmabkhout Youssef, Estevez Luis, Eddaoudi Mohamed, Giannelis Emmanuel P
Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853 (USA), Fax: (+1) 607-255-2365.
ChemSusChem. 2014 Apr;7(4):1035-9. doi: 10.1002/cssc.201300973. Epub 2014 Mar 5.
Layered double hydroxides (LDHs) with a hierarchical mesostructure are successfully synthesized on mesoporous silica foams by simple impregnation and hydrothermal treatment. The as-synthesized LDH/silica foam nanocomposites show well-defined mesostructures with high surface areas, large pore volumes, and mesopores of 6-7 nm. The nanocomposites act as carbon dioxide (CO2 ) sorbents under simulated flue gas conditions. They also exhibit significantly enhanced CO2 capacities under high-pressure conditions and high CO2 /N2 and CO2 /CH4 selectivities.
通过简单的浸渍和水热处理，在介孔二氧化硅泡沫上成功合成了具有分级介观结构的层状双氢氧化物（LDH）。所合成的LDH/二氧化硅泡沫纳米复合材料具有明确的介观结构，具有高表面积、大孔体积和6-7纳米的介孔。该纳米复合材料在模拟烟道气条件下可作为二氧化碳（CO₂）吸附剂。它们在高压条件下还表现出显著增强的CO₂吸附容量以及高的CO₂/N₂和CO₂/CH₄选择性。
