Amine-Functionalized Metal Organic Framework as a Highly Selective Adsorbent for CO2 over CO

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	Amine-Functionalized Metal Organic Framework as a Highly Selective Adsorbent for CO2 over CO
	Wang, Xingrui 1,2; Li, Huiquan 1; Hou, Xin-Juan 1
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2012-09-20
卷号	116 期号:37 页码:19814-19821
关键词	chromium terephthalate mil-101 carbon-dioxide catalytic-properties zeolite 13x adsorption separation capture ch4 encapsulation consequences
ISSN号	1932-7447
其他题名	J. Phys. Chem. C
中文摘要	An amine-functionalized metal organic framework, TEPA-MIL-101, was prepared by grafting tetraethylenepentamine (TEPA) on the coordinatively unsaturated Cr(III) sites of MIL-101 for the selective adsorption of CO2 over CO. The adsorbents were characterized using various techniques. The results indicate that the TEPA molecule was successfully grafted on Cr(III) without destroying the intrinsic structure of MIL-101. Isotherms for CO2 and CO adsorption on MIL-101 and TEPA-MIL-101 were obtained to determine the effects of the grafted TEPA on the CO2 adsorption capacity and selectivity. The results show that the CO2 capacity on TEPA-MIL-101 was higher than that on MIL-101 at lower pressures, whereas the CO capacity sharply decreased. The selectivity for CO2 over CO was clearly improved from 1.77 to 70.2 at 298 K and total pressure 40 kPa. The density functional theory calculation for the adsorption of CO2 and CO on TEPA indicates that the bonding energy of CO2 is obviously higher than that of CO. Analysis of the cyclic adsorption performance reveals the high stability of the adsorbent. On the basis of the experimental and simulation results, the grafting of amines on coordinatively unsaturated sites of metal organic frameworks is an effective method of achieving selective adsorption of CO2 over CO.
英文摘要	An amine-functionalized metal organic framework, TEPA-MIL-101, was prepared by grafting tetraethylenepentamine (TEPA) on the coordinatively unsaturated Cr(III) sites of MIL-101 for the selective adsorption of CO2 over CO. The adsorbents were characterized using various techniques. The results indicate that the TEPA molecule was successfully grafted on Cr(III) without destroying the intrinsic structure of MIL-101. Isotherms for CO2 and CO adsorption on MIL-101 and TEPA-MIL-101 were obtained to determine the effects of the grafted TEPA on the CO2 adsorption capacity and selectivity. The results show that the CO2 capacity on TEPA-MIL-101 was higher than that on MIL-101 at lower pressures, whereas the CO capacity sharply decreased. The selectivity for CO2 over CO was clearly improved from 1.77 to 70.2 at 298 K and total pressure 40 kPa. The density functional theory calculation for the adsorption of CO2 and CO on TEPA indicates that the bonding energy of CO2 is obviously higher than that of CO. Analysis of the cyclic adsorption performance reveals the high stability of the adsorbent. On the basis of the experimental and simulation results, the grafting of amines on coordinatively unsaturated sites of metal organic frameworks is an effective method of achieving selective adsorption of CO2 over CO.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]	CHROMIUM TEREPHTHALATE MIL-101 ; CARBON-DIOXIDE ; CATALYTIC-PROPERTIES ; ZEOLITE 13X ; ADSORPTION ; SEPARATION ; CAPTURE ; CH4 ; ENCAPSULATION ; CONSEQUENCES
收录类别	SCI
原文出处	://WOS:000308855600026
语种	英语
WOS记录号	WOS:000308855600026
公开日期	2013-11-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/6266]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xingrui,Li, Huiquan,Hou, Xin-Juan. Amine-Functionalized Metal Organic Framework as a Highly Selective Adsorbent for CO2 over CO[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(37):19814-19821.
APA	Wang, Xingrui,Li, Huiquan,&Hou, Xin-Juan.(2012).Amine-Functionalized Metal Organic Framework as a Highly Selective Adsorbent for CO2 over CO.JOURNAL OF PHYSICAL CHEMISTRY C,116(37),19814-19821.
MLA	Wang, Xingrui,et al."Amine-Functionalized Metal Organic Framework as a Highly Selective Adsorbent for CO2 over CO".JOURNAL OF PHYSICAL CHEMISTRY C 116.37(2012):19814-19821.