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Preparation of [Co(Im)2]∞ membranes on macroporous supports by secondary growth method

Authors： XIE Zhong, WANG Jinqu, YANG Jian-hua*, YIN Huimin, XU Jing, YIN Dehong, LU Jinming, ZHANG Yan

Units： Institute of Adsorption and Inorganic Membrane, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China

KeyWords： secondary growth method; metal organic frameworks membrane; MOFs; macroporous support; gas separation

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(3):30-36

Abstract：

[Co(Im)2]∞ seeds with size of 500nm were obtained in aqueous solution at near room temperature. The characterization of SEM, XRD showed that the [Co(Im)2]∞ crystals with uniform particle size distribution is suitable as seeds for the selected macroporous support. Through secondary growth method in aqueous solutions, continuous and crack-free [Co(Im)2]∞ membrane was successfully obtained on the low-cost macroporous α-Al2O3 support, exhibiting H2 permeance of 1.1×10-8mol m-2s-1Pa-1, with ideal selectivities for H2/CO2, H2/N2 and H2/CH4 ystem of 7.8, 9.1 and 7.9. Moreover, The effects of some parameters including the concentration of solution and synthesis times on the formation of [Co(Im)2]∞ membranes were investigated

Funds：

自然科学基金(No.21076029)；教育部新世纪优秀人才(NCET-10-0286)

AuthorIntro：

谢忠(1985-)，男，安徽安庆人，博士研究生，从事新型金属有机骨架膜的制备与应用研究。

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