期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 45, 页码 39025-39031出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b12728
关键词
chemically stable porous coordination polymer; inserted/shifted methyl group; optimized nanochannel; breakthrough efficiency; methane purification
资金
- National Natural Science Foundation of China [21671102, 21601047]
- Program of China Scholarships Council [201708320084]
- Natural Science Foundation of Jiangsu Province [BK20161538, BK20150798]
- Innovative Research Team Program by the Ministry of Education of China [IRT13070]
- Six talent peaks project in Jiangsu Province [JY-030]
High 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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