| 一个微孔钴基金属有机骨架的合成及其选择性气体吸附 |
| A microporous cobalt-based metal-organic framework for selective gas adsorption |
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| 摘要: 利用硝酸钴与配体5,5'-di(1H-1,2,4-triazol-1-yl)-(1,1'-biphenyl)-2,2'-dicarboxylic acid (H2DTBDA)进行溶剂热反应,制备了一个结构新颖的金属有机骨架{[Co(DTBDA)]2·DMF·MeOH}n (FJI-H37)。FJI-H37不仅具有适合气体分子吸附的0.69 nm的微孔,还具有良好的热稳定性及有机溶剂容忍性。气体吸附测试表明FJI-H37不仅能从C2H2/CO2(体积比50:50)混合气中选择性吸附C2H2,还可以从CO2/N2(体积比15:85)和CO2/CH4(体积比50:50)混合气中选择性捕获CO2;固定床突破实验进一步证实了其高效的气体分离能力。 |
| 关键词: 金属有机骨架 微孔材料 乙炔吸附 二氧化碳捕获 选择性吸附 |
| 基金项目: 国家自然科学基金(No.21871265)资助。 |
| Abstract: Herein, a novel metal-organic framework {[Co(DTBDA)]2·DMF·MeOH}n (FJI-H37) was prepared by solvothermal reaction of cobalt nitrate with ligand 5,5'-di(1H-1,2,4-triazol-1-yl)-(1,1'-biphenyl)-2,2'-dicarboxylic acid (H2DTBDA). FJI-H37 not only has 0.69 nm of micropores for gas adsorption but also possesses good thermal stability and organic solvent tolerance. The gas adsorption tests show that FJI-H37 can not only selectively adsorb C2H2 from a C2H2/CO2 (50:50, V/V) mixture with a relatively high adsorption selectivity of 4.2, but also selectively capture CO2 from a CO2/N2 (15:85, V/V) and CO2/CH4 (50:50, V/V) mixture; which can be further confirmed by the dynamic fixedbed breakthrough experiments. CCDC:2243534. |
| Keywords: metal-organic framework microporous material acetylene adsorption carbon dioxide capture selective adsorption |
| 投稿时间：2023-02-24 修订日期：2023-04-24 |
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| 盖世鹏,田金豆,江飞龙,陈其辉,洪茂椿.一个微孔钴基金属有机骨架的合成及其选择性气体吸附[J].无机化学学报,2023,39(6):1014-1022. |
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