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High-performance nanocomposite membranes realized by efficient molecular sieving with CuBDC nanosheets
Yanqin Yang1, Kunli Goh, Rong Wang
1Singapore Membrane Technology Centre, Nanyang Technological University, Singapore 637141, Singapore. thbae@ntu.edu.sg.
Chemical Communications (Cambridge, England)
|April 1, 2017
Abstract:
Two-dimensional (2-D) CuBDC nanosheets (ns-CuBDC) with high-aspect-ratios were deliberately paired with polymers possessing high free volumes to fabricate high performance gas separation membranes. Owing to the molecular sieving effect of the filler, a small ns-CuBDC loading (2-4 wt%) could significantly improve the CO2/CH4 selectivities of membranes, resulting in performances that surpass the upper bound limit for polymer membranes.