阴离子功能化超微孔MOF高效选择性捕获低浓度CO2（英文）

被引：5

作者：

张照强

丁琦

崔稷宇

崔希利

邢华斌

机构：

[1] KeyLaboratoryofBiomassChemicalEngineeringofMinistryofEducation,CollegeofChemicalandBiologicalEngineering,ZhejiangUniversity

来源：

Science China Materials | 2021年 / 64卷 / 03期

关键词：

D O I：

暂无

中图分类号：

X701 [废气的处理与利用]; TQ424 [吸附剂];

学科分类号：

摘要：

CO2捕获,尤其低浓度CO2捕获,对人类在限域空间中长时间工作、降低天然气液化过程中CO2腐蚀及冻结效应极为重要.本文首次报道了一种具有一维孔道的ZU-16-Co （TIFSIX-3-Co）材料,该材料孔道中含大量电负性F原子,可实现400–10,000 ppm浓度下CO2的高效捕获.相比同构材料,孔径为3.62?的ZU-16-Co在0.01和1.0 bar表现出最高的吸附量,分别为2.63和2.87 mmol g-1.模拟研究表明,ZU-16-Co具有优异的CO2捕获性能是由于其精准调控的孔道与CO2较强的主客体相互作用（F···C=O）及相对较大的孔容.此外,动态混合气（1/99和15/85 CO2/N2,50/50 CO2/CH4）固定床穿透实验也表明ZU-16-Co具有优良的CO2捕获性能.精准调控的孔化学尺度及周期性排布的电负性功能位点带来的良好的CO2捕获、分离性能使得超微孔ZU-16-Co成为极具前景的低浓度CO2吸附剂.

引用

页码：691 / 697

页数：7

共 9 条

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