期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 9, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201908804
关键词
2D MOFs; asymmetric hybrid membrane; energy conversation; ion current rectification; ion selectivity
类别
资金
- National Key Research and Development Program of China [2017YFA0206500]
- National Natural Science Foundation of China [21874155, 21635004, 21575163]
- Natural Science Foundation of Jiangsu Province [BK20191316]
- Double First-Class University project [CPU2018GY25]
- State Key Laboratory of Analytical Chemistry for Life Science [SKLACLS1919]
- Qing-Lan Project of Jiangsu Province (2019)
Biological ion channels are known as membrane proteins which can turn on and off under environmental stimulus to regulate ion transport and energy conversion. Rapid progress made in biological ion channels provides inspiration for developing artificial nanochannels to mimic the structures and functions of ion transport systems and energy conversion in biological ion channels. Due to the advantages of abundant pore channels, metal-organic frameworks (MOFs) have become competitive materials to control the nanofluidic transport. Herein, a facile in situ synthesis method is developed to prepare hybrid nanochannels constructed by 2D MOFs and porous anodic aluminum (PAA). The introduction of asymmetries in the chemical composition and surface charge properties gives the hybrid outstanding ion current rectification properties and excellent ion selectivity. A power density of 1.6 W m(-2) is achieved by integrating it into a salinity-gradient-driven device. With advantages of facile fabrication method and high ion selectivity, the prepared 2D MOFs/PAA hybrid membrane offers a promising candidate for power conversion and water desalination.
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