ArticleNational science review2019
Ionic thermal up-diffusion in nanofluidic salinity-gradient energy harvesting.
Article in National science review, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 93 citations in OpenAlex.
- Sustainable Cellulose Enables Blue Energy Toward Osmotic Energy Conversion.Nano-micro letters · 2026Review
- Ultra-Thin Ion Exchange Membranes by Low Ionomer Blending for Energy Harvesting.Nanomaterials (Basel, Switzerland) · 2024Article
- Nanofluidic osmotic power generators - advanced nanoporous membranes and nanochannels for blue energy harvesting.Chemical science · 2021Review
- Article
- Computational Fluid Dynamics Modeling of the Resistivity and Power Density in Reverse Electrodialysis: A Parametric Study.Membranes · 2020Article
- Robust sulfonated poly (ether ether ketone) nanochannels for high-performance osmotic energy conversion.National science review · 2020Article
- Active control of salinity-based power generation in nanopores using thermal and pH effects.RSC advances · 2020Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Advances in nanofabrication and materials science give a boost to the research in nanofluidic energy harvesting. Contrary to previous efforts on isothermal conditions, here a study on asymmetric temperature dependence in nanofluidic power generation is conducted. Results are somewhat counterintuitive. A negative temperature difference can significantly improve the membrane potential due to the impact of ionic thermal up-diffusion that promotes the selectivity and suppresses the ion-concentration polarization, especially at the low-concentration side, which results in dramatically enhanced electric power. A positive temperature difference lowers the membrane potential due to the impact of ionic thermal down-diffusion, although it promotes the diffusion current induced by decreased electrical resistance. Originating from the compromise of the temperature-impacted membrane potential and diffusion current, a positive temperature difference enhances the power at low transmembrane-concentration intensities and hinders the power for high transmembrane-concentration intensities. Based on the system's temperature response, we have proposed a simple and efficient way to fabricate tunable ionic voltage sources and enhance salinity-gradient energy conversion based on small nanoscale biochannels and mimetic nanochannels. These findings reveal the importance of a long-overlooked element-temperature-in nanofluidic energy harvesting and provide insights for the optimization and fabrication of high-performance nanofluidic power devices.
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Registered trials
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