A (3,6)-connected metal-organic framework with high CH4 binding affinity and uptake capacity

被引：19
作者：
Liu, Huiyan [1 ]
Wang, Qian [1 ]
Zhang, Mingxing [1 ]
Jiang, Jingjing [1 ]
机构：
[1] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing Natl Lab Microstruct, Sch Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China
来源：
CRYSTENGCOMM | 2015年 / 17卷 / 26期
基金：
中国国家自然科学基金;
关键词：
SELECTIVE CO2 UPTAKE; HIGH METHANE STORAGE; CARBON-DIOXIDE; PORE-SIZE; GAS-ADSORPTION; LIGAND FUNCTIONALIZATION; HYDROGEN STORAGE; H-2; STORAGE; SORPTION; SITES;
D O I：
10.1039/c5ce00612k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A (3,6)-connected metal-organic framework with a fit-3 topology, [CuL(NO3)]center dot 2DMF center dot H2O (NJU-Bai16), has been synthesized by self-assembly of binuclear [Cu-2(COO)(2)N-4] building blocks and heterofunctional ligand 3,5-di(pyridin-4-yl) benzoic acid (HL). The small pores within the framework have enabled their strong interactions with CH4 molecules. NJU-Bai16 was thereby found to exhibit high isosteric heats of CH4 adsorption (23.3 kJ mol(-1)) and uptake capacity (50.3 cm(3) g(-1) at 1 bar and 273 K). Additionally, NJU-Bai16 demonstrates high CO2 uptake (22.4 wt% at 1 bar) with excellent selectivity for CO2 over N-2 (29.7) at 273 K.
引用
收藏
页码：4793 / 4798
页数：6
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