Ying Yin, Ya Zhang, Xu Zhou, Bo Gui, Wenqi Wang, Wentao Jiang, Yue-Biao Zhang, Junliang Sun, Cheng Wang
{"title":"Ultrahigh–surface area covalent organic frameworks for methane adsorption","authors":"Ying Yin, Ya Zhang, Xu Zhou, Bo Gui, Wenqi Wang, Wentao Jiang, Yue-Biao Zhang, Junliang Sun, Cheng Wang","doi":"10.1126/science.adr0936","DOIUrl":null,"url":null,"abstract":"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- <jats:italic>Ccc</jats:italic> 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 <jats:sup>3</jats:sup> (STP) cm <jats:sup>−3</jats:sup> ] at 100 bar and 298 kelvin, and they exhibit the highest volumetric working capacity of 237 cm <jats:sup>3</jats:sup> (STP) cm <jats:sup>−3</jats:sup> at 5 to 100 bar and 298 kelvin among all reported porous crystalline materials.","PeriodicalId":21678,"journal":{"name":"Science","volume":null,"pages":null},"PeriodicalIF":44.7000,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1126/science.adr0936","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
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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