Synthesis and carbon dioxide sorption of layered double hydroxide/silica foam nanocomposites with hierarchical mesostructure

by L. Fu, G. Qi, O. Shekhah, Y. Belmabkhout, L. Estevez, M. Eddaoudi, E.P. Giannelis
Year: 2014 DOI: 10.1002/cssc.201300973

Extra Information

ChemSusChem, 7 (4): 1035–1039, (2014)


Layered double hydroxides (LDHs) with a hierarchical meso-structure 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.


Carbon dioxide capture Composites Layered double hydroxides Mesoporous materials Silica