A new metal–organic framework with potential for adsorptive separation of methane from carbon dioxide, acetylene, ethylene, and ethane established by simulated breakthrough experiments

Xing Duan; Qi Zhang; Jianfeng Cai; Yu Yang; Yuanjin Cui; Yabing He; Chuande Wu; Rajamani Krishna; Banglin Chen; Guodong Qian

doi:10.1039/C3TA14454B

A new metal–organic framework with potential for adsorptive separation of methane from carbon dioxide, acetylene, ethylene, and ethane established by simulated breakthrough experiments†

Xing Duan,^a Qi Zhang,^a Jianfeng Cai,^a Yu Yang,^a Yuanjin Cui,^a Yabing He,^b Chuande Wu,^c Rajamani Krishna,^d Banglin Chen*^ab and Guodong Qian*^a

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* Corresponding authors

^a State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Department of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
E-mail: gdqian@zju.edu.cn

^b Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA
E-mail: banglin.chen@utsa.edu
Fax: +1 210-458-7428

^c Department of Chemistry, Zhejiang University, Hangzhou 310027, China

^d Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands

Abstract

A new three-dimensional microporous metal–organic framework, Cu₂(MFDI) (ZJU-60, H₄MFDI = 5,5′-(9,9-dimethyl-9H-fluorene-2,7-diyl)diisophthalic acid), was solvothermally synthesized. ZJU-60 features a three-dimensional structure with a rare sty-a type topology and has two different types of pore apertures. With open metal sites and suitable pore spaces, ZJU-60 can readily separate methane in nearly pure form from CO₂ and C₂-hydrocarbon quaternary gas mixtures at room temperature with high separation capacity and moderate selectivity. The separation feasibility has been further established by simulated breakthrough and pulse chromatographic experiments.

Journal of Materials Chemistry A

A new metal–organic framework with potential for adsorptive separation of methane from carbon dioxide, acetylene, ethylene, and ethane established by simulated breakthrough experiments†

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A new metal–organic framework with potential for adsorptive separation of methane from carbon dioxide, acetylene, ethylene, and ethane established by simulated breakthrough experiments

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