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Enhanced CO2 Sorption Performance of Metal-Organic Frameworks by in-Situ Hydrolysis of Tetrazine Moiety in the Ligand |
Author Name | Affiliation | E-mail | QIAN Bin-Bin | School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China | | ZHAO Meng | School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China | | CHANG Ze | School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China | changze@nankai.edu.cn | BU Xian-He | School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China | buxh@nankai.edu.cn |
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Abstract: The polar acyl hydrazine groups were introduced into a “pillar-layer” MOF, [Zn4(bpta)2(dipytz)2(H2O)2]·4DMF·H2O (1) (H4bpta=1,1'-biphenyl-2,2',6,6'-tetracarboxylic acid and dipytz=di-3,6-(4-pyridyl)-1,2,4,5-tetrazine), through the in-situ hydrolysis modification of the dipytz pillar ligand, and [Zn4(bpta)2(dipytzhydr)(H2O)2]·solvent (2) (dipytzhydr=1,2-diisonicotinoylhydrazine) was obtained. The results of gas sorption measurement show that complex 2 has an enhanced CO2-framework affinity (initial CO2 adsorption enthalpies increase from 28.8 to 30.3 kJ·mol-1) and higher CO2/CH4 selectivity compared with that of complex 1. The present work indicates that in-situ hydrolysis modification is highly potential for the enhancement of CO2 adsorption performance of tetrazine functionalized MOFs. |
Keywords: metal-organic frameworks tetrazine post-synthesis property modulation CO2 sorption |
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QIAN Bin-Bin,ZHAO Meng,CHANG Ze,BU Xian-He.Enhanced CO2 Sorption Performance of Metal-Organic Frameworks by in-Situ Hydrolysis of Tetrazine Moiety in the Ligand[J].Chinese Journal of Inorganic Chemistry,2017,33(11):2051-2059. |
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