吸附
甲烷
共价键
曲面(拓扑)
化学
环境化学
化学工程
环境科学
材料科学
有机化学
工程类
几何学
数学
作者
Ying Yin,Ya Zhang,Xu Zhou,Bo Gui,Wenqi Wang,Wentao Jiang,Yue‐Biao Zhang,Junliang Sun,Cheng Wang
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2024-11-07
卷期号:386 (6722): 693-696
标识
DOI:10.1126/science.adr0936
摘要
Developing porous materials with ultrahigh surface areas for gas storage (for example, methane) is attractive but challenging. Here, we report two isostructural three-dimensional covalent organic frameworks (COFs) with a rare self-catenated alb -3,6- Ccc 2 topology and a pore size of 1.1 nanometer. Notably, these imine-linked microporous COFs show both high gravimetric Brunauer–Emmett–Teller (BET) surface areas (~4400 square meters per gram) and volumetric BET surface areas (~1900 square meters per cubic centimeter). Moreover, their volumetric methane uptake reaches up to 264 cubic centimeter (standard temperature and pressure) per cubic centimeter [cm 3 (STP) cm −3 ] at 100 bar and 298 kelvin, and they exhibit the highest volumetric working capacity of 237 cm 3 (STP) cm −3 at 5 to 100 bar and 298 kelvin among all reported porous crystalline materials.
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