金属有机骨架材料Cu-BTC的成型及储甲烷性能研究

马蕊英, 孙兆松, 黄新露, 张英

现代化工 ›› 2018, Vol. 38 ›› Issue (12) : 129 -131,133.

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现代化工 ›› 2018, Vol. 38 ›› Issue (12) : 129-131,133. DOI: 10.16606/j.cnki.issn0253-4320.2018.12.028
科研与开发

金属有机骨架材料Cu-BTC的成型及储甲烷性能研究

    马蕊英, 孙兆松, 黄新露, 张英
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Shaping of metal-organic framework Cu-BTC and its methane storage performance

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摘要

为探索Cu-BTC材料在天然气吸附存储中的应用,采用滚动成型法对Cu-BTC粉末进行成型,考察了成型前后样品的晶体结构、孔结构和甲烷吸附量,并与活性炭小球进行对比。结果表明,虽然成型后Cu-BTC小球损失了部分比表面积、孔容和23%的甲烷吸附量,但比表面积和总孔容仍高达1 259 m2/g和0.56 cm3/g。在298 K、3.5 MPa下,Cu-BTC小球的甲烷质量吸附量为161 cm3/g,高于活性炭小球的114 cm3/g,体积吸附量为110 cm3/cm3,可交付使用的甲烷量为145 cm3/g。

Abstract

To explore the application prospects of Cu-BTC materials in adsorbing and storing natural gas,Cu-BTC powders are shaped via roll forming method.The crystal structure,pore structure and methane adsorption capacity of the samples before and after shaping are examined and compared with activated carbon spheres.The results show that Cu-BTC pellet after the shaping process losses some specific surface area,some pore volume and 23% of CH4 uptake,however,its specific surface area and total pore volume are still as high as 1,259 m2·g-1 and 0.56 cm3·g-1,respectively.At 298 K and 3.5 MPa,the gravimetric CH4 adsorption amount by Cu-BTC pellets reaches 161 cm3·g-1,which is higher than 114 cm3·g-1 by activated carbon pellets,and its volumetric adsorption amount can reach 110 V/V and the usable CH4 capacity is 145 cm3·g-1.

关键词

金属有机骨架材料 / 吸附存储 / 成型 / Cu-BTC

Key words

metal-organic framework materials / adsorption storage / shaping / Cu-BTC

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金属有机骨架材料Cu-BTC的成型及储甲烷性能研究[J]. 现代化工, 2018, 38(12): 129-131,133 DOI:10.16606/j.cnki.issn0253-4320.2018.12.028

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