title: Synthesis and carbon dioxide sorption of layered double hydroxide/silica foam nanocomposites with hierarchical mesostructure.
abstract: 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.
authors.affiliation: Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853 (USA), Fax: (+1) 607-255-2365.
authors.forename: Liling
authors.initials: L
authors.lastname: Fu
authors.forename: Genggeng
authors.initials: G
authors.lastname: Qi
authors.forename: Osama
authors.initials: O
authors.lastname: Shekhah
authors.forename: Youssef
authors.initials: Y
authors.lastname: Belmabkhout
authors.forename: Luis
authors.initials: L
authors.lastname: Estevez
authors.forename: Mohamed
authors.initials: M
authors.lastname: Eddaoudi
authors.forename: Emmanuel P
authors.initials: EP
authors.lastname: Giannelis
mesh_terms: D000327:Adsorption; D002245:Carbon Dioxide / Q000737:chemistry* / Q000302:isolation & purification; D006878:Hydroxides / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D006878:Hydroxides; D002245:Carbon Dioxide; D012822:Silicon Dioxide
keywords: carbon dioxide capture; composites; layered double hydroxides; mesoporous materials; silica