Multivariate Polycrystalline Metal–Organic Framework Membranes for CO2/CH4 Separation
| العنوان: | Multivariate Polycrystalline Metal–Organic Framework Membranes for CO2/CH4 Separation |
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| المؤلفون: | Dongchen Shi, Shing Bo Peh, Yi Di Yuan, Dan Zhao, Hongye Yuan, Ziqi Yang, Yunpan Ying, Xin Yu, Weidong Fan, Chengjun Kang |
| المصدر: | Journal of the American Chemical Society. 143:17716-17723 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Chemistry, Substrate (chemistry), General Chemistry, Permeance, Microporous material, Biochemistry, Catalysis, Membrane technology, Colloid and Surface Chemistry, Membrane, Adsorption, Chemical engineering, Gas separation, Selectivity |
| الوصف: | Membrane technology is attractive for natural gas separation (removing CO2, H2O, and hydrocarbons from CH4) because of membranes' low energy consumption and small environmental footprint. Compared to polymeric membranes, microporous inorganic membranes such as silicoaluminophosphate-34 (SAPO-34) membrane can retain their separation performance under conditions close to industrial requirements. However, moisture and hydrocarbons in natural gas can be strongly adsorbed in the pores of those membranes, thereby reducing the membrane separation performance. Herein, we report the fabrication of a polycrystalline MIL-160 membrane on an Al2O3 substrate by in situ hydrothermal synthesis. The MIL-160 membrane with a thickness of ca. 3 μm shows a remarkable molecular sieving effect in gas separation. Besides, the pore size and environment of the MIL-160 membrane can be precisely controlled using reticular chemistry by regulating the size and functionality of the ligand. Interestingly, the more polar fluorine-functionalized multivariate MIL-160/CAU-10-F membrane exhibits a 10.7% increase in selectivity for CO2/CH4 separation and a 31.2% increase in CO2 permeance compared to those of the MIL-160 membrane. In addition, hydrophobic MIL-160 membranes and MIL-160/CAU-10-F membranes are more resistant to water vapor and hydrocarbons than the hydrophilic SAPO-34 membranes. |
| تدمد: | 1520-5126 0002-7863 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::1f5382e098f5ca951604089fcc5c1044 https://doi.org/10.1021/jacs.1c08404 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........1f5382e098f5ca951604089fcc5c1044 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205126 00027863 |
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