Rationally tuned micropores within enantiopure metal-organic frameworks for highly selective separation of acetylene and ethylene

Sheng-Chang Xiang, Zhangjing Zhang, Cong-Gui Zhao, Kunlun Hong, Xuebo Zhao, Ding De-Rong, Ming-Hua Xie, Chuan- De Wu, Madhab C. Das, Rachel Gill, K. Mark Thomas () and Banglin Chen ()
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Sheng-Chang Xiang: University of Texas at San Antonio, One UTSA Circle
Zhangjing Zhang: University of Texas at San Antonio, One UTSA Circle
Cong-Gui Zhao: University of Texas at San Antonio, One UTSA Circle
Kunlun Hong: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
Xuebo Zhao: Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences
Ding De-Rong: University of Texas at San Antonio, One UTSA Circle
Ming-Hua Xie: Zhejiang University
Chuan- De Wu: Zhejiang University
Madhab C. Das: University of Texas at San Antonio, One UTSA Circle
Rachel Gill: Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences
K. Mark Thomas: Northern Carbon Research Laboratories, Sir Joseph Swan Institute and School of Chemical Engineering and Advanced Material, University of Newcastle upon Tyne
Banglin Chen: University of Texas at San Antonio, One UTSA Circle

Nature Communications, 2011, vol. 2, issue 1, 1-7

Abstract: Abstract Separation of acetylene and ethylene is an important industrial process because both compounds are essential reagents for a range of chemical products and materials. Current separation approaches include the partial hydrogenation of acetylene into ethylene over a supported Pd catalyst, and the extraction of cracked olefins using an organic solvent; both routes are costly and energy consuming. Adsorption technologies may allow separation, but microporous materials exhibiting highly selective adsorption of C2H2/C2H4 have not been realized to date. Here, we report the development of tunable microporous enantiopure mixed-metal-organic framework (M′MOF) materials for highly selective separation of C2H2 and C2H4. The high selectivities achieved suggest the potential application of microporous M′MOFs for practical adsorption-based separation of C2H2/C2H4.

Date: 2011
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DOI: 10.1038/ncomms1206

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