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首页> 外文期刊>Crystal growth & design >High-capacity gas storage by a microporous oxalamide-functionalized NbO-type metal-organic framework
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High-capacity gas storage by a microporous oxalamide-functionalized NbO-type metal-organic framework

机译:通过微孔草酰胺官能化的NbO型金属-有机骨架进行大容量气体存储

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摘要

A microporous oxalamide-functionalized NbO-type metal-organic framework, HNUST-3, has been designed and synthesized by self-assembling [Cu_ 2(COO)_4] paddlewheel SBUs and a novel tetracarboxylate ligand with linking oxalamide groups. HNUST-3 represents the first example of a porous oxalamide-functionalized MOF, which exhibits a high BET surface area of 2412 m~2·g~(-1), large H_2 uptake (unsaturated total capacity of 6.1 wt % at 20 bar and 77 K), and excellent CH_4 storage (135.8 cm~3(STP)cm~(-3) at 20 bar and 298 K) as well as high CO_2 adsorption capacity (20.2 mmol·g~(-1) at 20 bar and 298 K) with good selectivity for CO_2 over CH_4 (7.9) and N_2 (26.1) at 298 K.
机译:通过自组装[Cu_2(COO)_4]桨轮SBU和具有连接草酰胺基的新型四羧酸酯配体,设计并合成了微孔草酰胺官能化的NbO型金属有机骨架HNUST-3。 HNUST-3代表了多孔草酰胺官能化的MOF的第一个实例,它具有2412 m〜2·g〜(-1)的高BET表面积,大的H_2吸收率(在20 bar下不饱和的总容量为6.1 wt%)和77 K),出色的CH_4存储(20 bar和298 K时135.8 cm〜3(STP)cm〜(-1)和20 bar和20 bar时高的CO_2吸附能力(20.2 mmol·g〜(-1) 298 K),在298 K时对CH_2(7.9)和N_2(26.1)的CO_2具有良好的选择性。

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