High-Capacity Gas Storage by a Microporous Oxalamide-Functionalized NbO-Type Metal-Organic Framework

作者：Wang, Zhaoxu; Zheng, Baishu^*; Liu, Heting; Lin, Xiu; Yu, Xianyong; Yi, Pinggui; Yun, Ruirui

来源：Crystal Growth & Design, 2013, 13(11): 5001-5006.

DOI：10.1021/cg401180r

• HIGH H-2 ADSORPTION
• HYDROGEN-STORAGE
• CARBON-DIOXIDE
• PORE-SIZE
• METHANE STORAGE
• CO2 CAPTURE
• SORPTION
• SITES
• SELECTIVITY
• CATALYSIS

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 CH4 storage (135.8 cm(3)(STP)cm(-3) at 20 bar and 298 K) as well as high CO2 adsorption capacity (20.2 mmol.g(-1) at 20 bar and 298 K) with good selectivity for CO2 over CH4 (7.9) and N-2 (26.1) at 298 K.

• 出版日期2013-11
• 单位安徽师范大学; 湖南科技大学