A Combinatorial Approach towards Water-Stable Metal-Organic Frameworks for Highly Efficient Carbon Dioxide Separation

作者：Hu, Zhigang^*; Zhang, Kang; Zhang, Mei; Guo, Zhengang; Jiang, Jianwen; Zhao, Dan

来源：Chemsuschem, 2014, 7(10): 2791-2795.

DOI：10.1002/cssc.201402378

• clean energy
• carbon dioxide capture
• combinatorial chemistry
• metal-organic frameworks
• natural gas

A library of 20 UiO-66-derived metal-organic frameworks (MOFs) is synthesized in a combinatorial approach involving mixed ligand copolymerization and two post-synthetic modifications (PSMs) in tandem. Mixed ligand co-polymerization of benzene-1,4-dicarboxylic acid (BDC) and sodium 2-sulfoterephthalate (SS-BDC) with zirconium tetrachloride (ZrCl4) was used to prepare 5 groups of MOFs with the same UiO-66 topology but differing amounts of sulfate groups. These MOFs exhibit excellent water stabilities in a pH range of 1 to 12, together with high CO2 uptake capacities and selectivities.

• 出版日期2014-10