Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 50, Pages 26167-26176Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202110731
Keywords
enhanced permselectivity; ordered mesoporous carbon-silica; salinity gradient energy conversion; super-assembly; temperature- and pH-sensitive
Categories
Funding
- National Key Research and De-velopment Program of China [2019YFC1604601, 2019YFC1604600, 2017YFA0206901, 2017YFA0206900, 2018YFC1602301]
- National Natural Science Foundation of China [21705027, 21974029]
- Natural Science Foundation of Shanghai [18ZR1404700]
- Construction project of Shanghai Key Laboratory of Molecular Imaging [18DZ2260400]
- Shanghai Municipal Education Commission (Class II Plateau Disciplinary Construction Program of Medical Technology of SUMHS)
- Australia National Health and Medical Research Council (NHMRC) [GNT1163786]
- Australian Research Council (ARC) [DP190101008]
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A new mesoporous carbon-silica/anodized aluminum (MCS/AAO) nanofluidic device with enhanced permselectivity for temperature- and pH-regulated energy generation was successfully obtained by interfacial super-assembly method. Experimental results show that the device has superior diode-like ion transport performance and can achieve higher power densities.
Nanofluidic devices have been widely used for diode-like ion transport and salinity gradients energy conversion. Emerging reverse electrodialysis (RED) nanofluidic systems based on nanochannel membrane display great superiority in salinity gradient energy harvesting. However, the imbalance between permeability and selectivity limits their practical application. Here, a new mesoporous carbon-silica/anodized aluminum (MCS/AAO) nanofluidic device with enhanced permselectivity for temperature- and pH-regulated energy generation was obtained by interfacial super-assembly method. A maximum power density of 5.04 W m(-2) is achieved, and a higher performance can be obtained by regulating temperature and pH. Theoretical calculations are further implemented to reveal the mechanism for ion rectification, ion selectivity and energy conversion. Results show that the MCS/AAO hybrid membrane has great superiority in diode-like ion transport, temperature- and pH-regulated salinity gradient energy conversion.
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