Highly Stable Amine-modified Mesoporous Silica Materials for Efficient CO(2) Capture

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Title:	Highly Stable Amine-modified Mesoporous Silica Materials for Efficient CO(2) Capture
Authors:	Liu, SH (Liu, Shou-Heng) Wu, CH (Wu, Chia-Hua) Lee, HK (Lee, Huang-Kuei) Liu, SB (Liu, Shang-Bin)
Contributors:	化材所
Keywords:	CARBON-DIOXIDE CAPTURE METAL-ORGANIC FRAMEWORKS MOLECULAR-SIEVE MCM-41 ADSORPTION SEPARATION LITHIUM ZIRCONATE AQUEOUS BLENDS HIGH-CAPACITY GAS SORPTION X-ZEOLITES FLUE-GAS
Date:	2009-12
Issue Date:	2011-12-12 15:47:13 (UTC+8)
Abstract:	A highly efficient and stable solid adsorbent invoking a direct incorporation of tetraethylenepentamine (TEPA) onto the as-synthesized mesocelullar silica foam (MSF) has been developed for CO(2) capture. Unlike most amine-functionalized silicas, which typically exhibit CO(2) adsorption capacities less than 2.0 mmol/g, such organic template occluded mesoporous silica-amine composites exhibited remarkably high CO(2) uptake as high as 4.5 mmol/g at 348 K and 1 atm. Moreover, notable increases in CO(2) adsorption capacities of the composite materials were observed when in the presence of humidity. Durability test performed by cyclic adsorption-desorption revealed that such adsorbents also possess excellent stability, even though a slight decrease in adsorption capacity over time was observed.
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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