Tetrazole-Viologen-based Flexible Microporous Metal-Organic Framework with High CO2 Selective Uptake

Ya-Ping Zhao; Yan Li; Cai-Yan Cui; Yu Xiao; Rong Li; Shuai-Hua Wang; Fa-Kun Zheng; Guo-Cong Guo

doi:10.1021/acs.inorgchem.6b00320

Tetrazole-Viologen-based Flexible Microporous Metal-Organic Framework with High CO2 Selective Uptake

Inorg Chem. 2016 Aug 1;55(15):7335-40. doi: 10.1021/acs.inorgchem.6b00320. Epub 2016 Jul 11.

Authors

Ya-Ping Zhao^{1

2}, Yan Li³, Cai-Yan Cui^{1

2}, Yu Xiao^{1

2}, Rong Li^{1

2}, Shuai-Hua Wang¹, Fa-Kun Zheng¹, Guo-Cong Guo¹

Affiliations

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, P. R. China.
² University of Chinese Academy of Sciences , Beijing 100039, P. R. China.
³ Department of Chemistry, East China University of Science and Technology , Shanghai 200237, P. R. China.

PMID: 27400274
DOI: 10.1021/acs.inorgchem.6b00320

Abstract

A flexible metal-organic framework (FMOF) with functionalized pores was hydrothermally synthesized to improve CO2 affinity and selectivity. The obtained FMOF exhibits a reversible shrinking and swelling framework transformation, which is triggered by the adsorption of CO2 rather than by the adsorption of N2 and CH4. At ambient temperature and an atmospheric pressure, this FMOF shows not only a high CO2 uptake (98 cm(3) g(-1), 19.3 wt %) but also a good calculated adsorption selectivity for CO2 over both CH4 and N2 (CO2/CH4 50:50 v/v: 28.6:1, CO2/N2 15:85 v/v: 210.4:1 calculated by ideal adsorbed solution theory), indicating potential applications in the purification of natural gas and industrial flue gas.