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DOI | 10.1016/j.micromeso.2019.03.001 |
Extraordinarily selective adsorption of CO2 over N-2 in a polyethylene-imine-impregnated NU-1000 material | |
Kang, Jo Hong1,3; Yoon, Tae-Ung1; Kim, Seo-Yul1; Kim, Min-Burn1; Kim, Hyung-Ju2; Yang, Hee-Chul2; Bae, Youn-Sang1 | |
发表日期 | 2019 |
ISSN | 1387-1811 |
EISSN | 1873-3093 |
卷号 | 281页码:84-91 |
英文摘要 | Developing an efficient adsorbent for selective separation and capture of CO2 from CO2/N-2 mixture is an important and challenging issue for mitigating global warming. In this study, we posited that high CO2/N-2 selectivity could be obtained by impregnating polyethyleneimine (PEI) within the pores of NU-1000, a zirconium based metal-organic framework (MOF), since it has a high surface area (similar to 2320 m(2)/g) and free and exposed -OH groups but does not have unsaturated metal sites possibly having strong interactions with N-2 molecules. A series of PEI-impregnated NU-1000 (PEI(x)@NU-1000) materials with varied PEI loadings have been successfully prepared. As reasoned, PEI(50)@NU-1000 showed the highest CO2/N-2 selectivity among the PEI-loaded adsorbents in the literature under similar conditions. Remarkably, it exhibited extremely high CO2/N-2 selectivities (similar to 8000) at low pressures and a very high CO2/N-2 selectivity (661) at a typical pressure of flue gas (1 bar). Furthermore, PEI(50)@NU-1000 could efficiently separate CO2/N-2 mixture under a dynamic flow condition and maintained its CO2 uptakes during three consecutive adsorption and desorption. |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
来源期刊 | MICROPOROUS AND MESOPOROUS MATERIALS
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/98280 |
作者单位 | 1.Yonsei Univ, Dept Chem & Biomol Engn, 50 Yonsei Ro, Seoul 03722, South Korea; 2.Korea Atom Energy Res Inst, Decommissioning Technol Res Div, 1045 Daedeok Daero, Daejeon 34057, South Korea; 3.Korea Inst Ind Technol, Green Mat & Proc R&D Grp, 55 Jongga Ro, Ulsan 44413, South Korea |
推荐引用方式 GB/T 7714 | Kang, Jo Hong,Yoon, Tae-Ung,Kim, Seo-Yul,et al. Extraordinarily selective adsorption of CO2 over N-2 in a polyethylene-imine-impregnated NU-1000 material[J],2019,281:84-91. |
APA | Kang, Jo Hong.,Yoon, Tae-Ung.,Kim, Seo-Yul.,Kim, Min-Burn.,Kim, Hyung-Ju.,...&Bae, Youn-Sang.(2019).Extraordinarily selective adsorption of CO2 over N-2 in a polyethylene-imine-impregnated NU-1000 material.MICROPOROUS AND MESOPOROUS MATERIALS,281,84-91. |
MLA | Kang, Jo Hong,et al."Extraordinarily selective adsorption of CO2 over N-2 in a polyethylene-imine-impregnated NU-1000 material".MICROPOROUS AND MESOPOROUS MATERIALS 281(2019):84-91. |
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