2013
DOI: 10.1021/la400109j
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Novel Pore-Expanded MCM-41 for CO2 Capture: Synthesis and Characterization

Abstract: Recently, amine-functionalized mesoporous silica materials have attracted considerable attention as a promising chemical sorbent for postcombustion CO2 capture applications. However, the grafting of amines in the conventional MCM-41 support induces the subsequent reduction of surface area and pore volume of the sorbents, affecting the CO2 adsorption-desorption kinetics significantly. To mitigate this problem, expensive pore expansion agents have been used to increase the pore size as well as the pore volume. T… Show more

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Cited by 139 publications
(120 citation statements)
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“…CCS is important to mitigate the global warming and its consequences by capture of CO 2 from large anthropogenic sources. Aqueous alkanolamines and chilled ammonia based absorption process [5,6], membrane separation process [7,8], novel cryogenic process [9], algal biomass process [10,11] and porous solid adsorption process [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] are most commonly used for CO 2 capture. Among these processes aqueous alkanolamine especially monoethanolamine (MEA) and diethanolamine (DEA) based absorption process is well known with significant commercial application for CO 2 capture.…”
Section: Introductionmentioning
confidence: 99%
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“…CCS is important to mitigate the global warming and its consequences by capture of CO 2 from large anthropogenic sources. Aqueous alkanolamines and chilled ammonia based absorption process [5,6], membrane separation process [7,8], novel cryogenic process [9], algal biomass process [10,11] and porous solid adsorption process [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] are most commonly used for CO 2 capture. Among these processes aqueous alkanolamine especially monoethanolamine (MEA) and diethanolamine (DEA) based absorption process is well known with significant commercial application for CO 2 capture.…”
Section: Introductionmentioning
confidence: 99%
“…Adsorption is an alternate and cost effective CO 2 capture process. In the recent years microporous activated carbon [22,23], metal organic frameworks (MOFs), zeolites [24,25] and amine functionalized silica and foams based adsorption processes [12][13][14][15][16][17][18][19][20][21][26][27][28][29] have shown strong potential for CO 2 capture.…”
Section: Introductionmentioning
confidence: 99%
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“…The CO 2 sorption capacity usually decreases for amine grafted silica with temperature as observed for double-walled silica nanotubes and pore expanded mesoporous silica grafted with amines [51,60]. This is expected since only strong amine -CO 2 interactions will contribute to the sorption capacity at higher temperatures.…”
Section: Discussionmentioning
confidence: 77%