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Enhanced Breakthrough Efficiency by a Chemically Stable Porous Coordination Polymer with Optimized Nanochannel
journal contribution
posted on 2018-10-22, 00:00 authored by Haifei Cao, Zhiyong Lu, Kim Hyeon-Deuk, I-Ya Chang, Yang Wang, Zhifeng Xin, Jingui Duan, Wanqin JinHigh
separation efficiency is very important for process of pressure swing
adsorption (PSA) in the industry. Herein, we propose a fine design
of chemically stable porous coordination polymers (PCPs) with optimized
nanochannel by strategy of inserting and shifting shortest alkyl group
on T-shaped ligand. Remarkably, the synergistic effect of optimized
nanochannel, unique crystal morphology and fitted channel enable sharply
enhanced breakthrough efficiency of C2H6/4/CH4, 1.17 or 0.77 g of CH4 can be separated from corresponding
dual mixtures (2/8, v/v) by 1 g of NTU-25 at 273 K, which was further
validated and understood by controlled experiments and density functional
theory (DFT) computations.
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polymerpressure swing adsorptionPCPcomputationT-shapedmixturemorphologystrategycoordinationliganddensity-25breakthroughOptimized Nanochannel High separation efficiencyoptimized nanochannelCHexperiment1.17Enhanced Breakthrough EfficiencyChemically Stable Porous Coordination PolymerDFTalkylPSANTUHereincrystal0.77Remarkably
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