Two Li-Zn Cluster-Based Metal-Organic Frameworks: Strong H2/CO2 Binding and High Selectivity to CO2

Yong-Liang Huang; Di-Chang Zhong; Long Jiang; Yun-Nan Gong; Tong-Bu Lu

doi:10.1021/acs.inorgchem.6b02407

Two Li-Zn Cluster-Based Metal-Organic Frameworks: Strong H₂/CO₂ Binding and High Selectivity to CO₂

Inorg Chem. 2017 Jan 17;56(2):705-708. doi: 10.1021/acs.inorgchem.6b02407. Epub 2016 Dec 29.

Authors

Yong-Liang Huang¹, Di-Chang Zhong^{2

3}, Long Jiang¹, Yun-Nan Gong³, Tong-Bu Lu^{2

1}

Affiliations

¹ MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, China.
² Institute of New Energy Materials & Low Carbon Technology, School of Material Science & Engineering, Tianjin University of Technology , Tianjin 300384, China.
³ School of Chemistry and Chemical Engineering, Gannan Normal University , Ganzhou 341000, China.

PMID: 28032766
DOI: 10.1021/acs.inorgchem.6b02407

Abstract

Two metal-organic frameworks (MOFs) {(Me₂NH₂)[ZnLi(PTCA)(H₂O)]}_n·n{3DMF·C₄H₈O₂·4H₂O} (1) and {(Me₂NH₂)[ZnLi(PTCA)]}_n·n{3DMF·5H₂O} (2) have been constructed from Li-Zn clusters and pyrene-1,3,6,8-tetracarboxylic acid (H₄PTCA) under solvothermal conditions. Gas sorption measurements have revealed that the pore of desolvated 2 (2d) can strongly interact with H₂ and CO₂, with high H₂ and CO₂ adsorption heats of 15.3 and 51.9 kJ/mol, respectively. Furthermore, 2d can selectively adsorb CO₂ over N₂ and CH₄, with high adsorption selectivity of CO₂/N₂ and CO₂/CH₄.