Variability of the thermohaline structure of a coastal hypersaline lagoon and the implications for salinity gradient energy harvesting

2020 ◽  
Vol 38 ◽  
pp. 100645 ◽  
Author(s):  
Oscar Reyes-Mendoza ◽  
Oscar Alvarez-Silva ◽  
Xavier Chiappa-Carrara ◽  
Cecilia Enriquez
Keyword(s):  
Energy Harvesting ◽  
Salinity Gradient ◽  
Thermohaline Structure ◽  
Gradient Energy ◽  
Hypersaline Lagoon

Reverse electrodialysis in bilayer nanochannels: salinity gradient-driven power generation

2018 ◽  
Vol 20 (10) ◽  
pp. 7295-7302 ◽  
Author(s):  
Rui Long ◽  
Zhengfei Kuang ◽  
Zhichun Liu ◽  
Wei Liu
Keyword(s):  
Power Generation ◽  
Energy Harvesting ◽  
Salinity Gradient ◽  
Reverse Electrodialysis ◽  
Gradient Energy ◽  
Ion Transportation

To evaluate the possibility of nano-fluidic reverse electrodialysis (RED) for salinity gradient energy harvesting, we consider the behavior of ion transportation in a bilayer cylindrical nanochannel with different sized nanopores connecting two reservoirs at different NaCl concentrations.

Review—Technologies and Materials for Water Salinity Gradient Energy Harvesting

2021 ◽  
Author(s):  
Xiong-Wei Han ◽  
Wei-Bin Zhang ◽  
Xue-Jing Ma ◽  
Xia Zhou ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Salinity Gradient ◽  
Water Salinity ◽  
Gradient Energy

scholarly journals Porous Ti3C2Tx MXene Membranes for Highly Efficient Salinity Gradient Energy Harvesting

ACS Nano ◽  
2022 ◽  
Author(s):  
Seunghyun Hong ◽  
Jehad K. El-Demellawi ◽  
Yongjiu Lei ◽  
Zhixiong Liu ◽  
Faisal Al Marzooqi ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Salinity Gradient ◽  
Highly Efficient ◽  
Gradient Energy

Hydrodynamic slip enhanced nanofluidic reverse electrodialysis for salinity gradient energy harvesting

Desalination ◽  
2020 ◽  
Vol 477 ◽  
pp. 114263 ◽  
Author(s):  
Rui Long ◽  
Yanan Zhao ◽  
Zhengfei Kuang ◽  
Zhichun Liu ◽  
Wei Liu
Keyword(s):  
Energy Harvesting ◽  
Salinity Gradient ◽  
Reverse Electrodialysis ◽  
Hydrodynamic Slip ◽  
Gradient Energy

scholarly journals Ionic thermal up-diffusion in nanofluidic salinity-gradient energy harvesting

2019 ◽  
Vol 6 (6) ◽  
pp. 1266-1273 ◽  
Author(s):  
Rui Long ◽  
Zhengfei Kuang ◽  
Zhichun Liu ◽  
Wei Liu
Keyword(s):  
Membrane Potential ◽  
Energy Harvesting ◽  
Temperature Difference ◽  
Salinity Gradient ◽  
Ion Concentration ◽  
Diffusion Current ◽  
Positive Temperature ◽  
Ion Concentration Polarization ◽  
Gradient Energy ◽  
The Impact

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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