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

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• 作者：Zhaoxu Wang ; Baishu Zheng ; Heting Liu ; Xiu Lin ; Xianyong Yu ; Pinggui Yi ; Ruirui Yun
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：November 6, 2013
• 年：2013
• 卷：13
• 期：11
• 页码：5001-5006
• 全文大小：358K
• 年卷期：v.13,no.11(November 6, 2013)
• ISSN：1528-7505

文摘

A microporous oxalamide-functionalized NbO-type metal鈥搊rganic framework, HNUST-3, has been designed and synthesized by self-assembling [Cu₂(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 m²路g^鈥?, large H₂ uptake (unsaturated total capacity of 6.1 wt % at 20 bar and 77 K), and excellent CH₄ storage (135.8 cm³(STP)cm^鈥? at 20 bar and 298 K) as well as high CO₂ adsorption capacity (20.2 mmol路g^鈥? at 20 bar and 298 K) with good selectivity for CO₂ over CH₄ (7.9) and N₂ (26.1) at 298 K.