High efficiency nanocomposite sorbents for CO2 capture based on amine-functionalized mesoporous capsules
Park, Ah-Hyung Alissa
Jones, Christopher W.
Giannelis, Emmanuel P.
KAUST Grant NumberKUS-C1-018-02
Permanent link to this recordhttp://hdl.handle.net/10754/598466
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AbstractA novel high efficiency nanocomposite sorbent for CO2 capture has been developed based on oligomeric amine (polyethylenimine, PEI, and tetraethylenepentamine, TEPA) functionalized mesoporous silica capsules. The newly synthesized sorbents exhibit extraordinary capture capacity up to 7.9 mmol g-1 under simulated flue gas conditions (pre-humidified 10% CO 2). The CO2 capture kinetics were found to be fast and reached 90% of the total capacities within the first few minutes. The effects of the mesoporous capsule features such as particle size and shell thickness on CO2 capture capacity were investigated. Larger particle size, higher interior void volume and thinner mesoporous shell thickness all improved the CO2 capacity of the sorbents. PEI impregnated sorbents showed good reversibility and stability during cyclic adsorption-regeneration tests (50 cycles). © 2011 The Royal Society of Chemistry.
CitationQi G, Wang Y, Estevez L, Duan X, Anako N, et al. (2011) High efficiency nanocomposite sorbents for CO2 capture based on amine-functionalized mesoporous capsules. Energy Environ Sci 4: 444–452. Available: http://dx.doi.org/10.1039/c0ee00213e.
SponsorsThis publication was based on work supported by award no. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST).
PublisherRoyal Society of Chemistry (RSC)
JournalEnergy Environ. Sci.