TY - JOUR
T1 - High efficiency nanocomposite sorbents for CO2 capture based on amine-functionalized mesoporous capsules
AU - Qi, Genggeng
AU - Wang, Yanbing
AU - Estevez, Luis
AU - Duan, Xiaonan
AU - Anako, Nkechi
AU - Park, Ah-Hyung Alissa
AU - Li, Wen
AU - Jones, Christopher W.
AU - Giannelis, Emmanuel P.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-C1-018-02
Acknowledgements: This publication was based on work supported by award no. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2011
Y1 - 2011
N2 - A 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.
AB - A 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.
UR - http://hdl.handle.net/10754/598466
UR - http://xlink.rsc.org/?DOI=C0EE00213E
UR - http://www.scopus.com/inward/record.url?scp=79851500355&partnerID=8YFLogxK
U2 - 10.1039/c0ee00213e
DO - 10.1039/c0ee00213e
M3 - Article
SN - 1754-5692
VL - 4
SP - 444
EP - 452
JO - Energy Environ. Sci.
JF - Energy Environ. Sci.
IS - 2
ER -