Adsorption mechanism on metal organic frameworks of Cu-BTC, Fe-BTC and ZIF-8 for CO2 capture investigated by X-ray absorption fine structure
文献类型:期刊论文
作者 | Du, M; Li, L; Li, MX; Si, R |
刊名 | RSC ADVANCES
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出版日期 | 2016 |
卷号 | 6期号:67页码:62705-62716 |
ISSN号 | 2046-2069 |
通讯作者 | Li, L (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China. |
英文摘要 | Three different commercial metal-organic frameworks (MOFs) of Cu-BTC, Fe-BTC and ZIF-8 have been characterized by multiple techniques including CO2 adsorption/desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS). Particularly, the MOFs powders were sealed inside quartz sample tubes for each step of CO2 adsorption/desorption, and were sequentially measured for XAFS to identify the short-range structural evolutions on investigated metals (Cu, Fe, Zn). According to the data analyses on X-ray absorption near edge spectroscope (XANES) and extended X-ray absorption fine structure (EXAFS), we can demonstrate that both electronic and local structures of MOFs were almost unchanged between fresh samples and those under the activated/adsorbed/desorbed conditions. This indicates that the CO2 adsorption of MOFs is mainly governed by the physical driving force. On the other hand, the chemical transformation, i.e. elimination of water in MOFs structure by the activation (13.3 kPa, 473 K, 12 h), was found for Cu-BTC only. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000379678200081 |
源URL | [http://ir.sinap.ac.cn/handle/331007/26420] ![]() |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
推荐引用方式 GB/T 7714 | Du, M,Li, L,Li, MX,et al. Adsorption mechanism on metal organic frameworks of Cu-BTC, Fe-BTC and ZIF-8 for CO2 capture investigated by X-ray absorption fine structure[J]. RSC ADVANCES,2016,6(67):62705-62716. |
APA | Du, M,Li, L,Li, MX,&Si, R.(2016).Adsorption mechanism on metal organic frameworks of Cu-BTC, Fe-BTC and ZIF-8 for CO2 capture investigated by X-ray absorption fine structure.RSC ADVANCES,6(67),62705-62716. |
MLA | Du, M,et al."Adsorption mechanism on metal organic frameworks of Cu-BTC, Fe-BTC and ZIF-8 for CO2 capture investigated by X-ray absorption fine structure".RSC ADVANCES 6.67(2016):62705-62716. |
入库方式: OAI收割
来源:上海应用物理研究所
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