High performance concentration capacitors with graphene hydrogel electrodes for harvesting salinity gradient energy

2018 ◽  
Vol 6 (12) ◽  
pp. 4981-4987 ◽  
Author(s):  
Fei Zhan ◽  
Zijian Wang ◽  
Tingting Wu ◽  
Qiang Dong ◽  
Changtai Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Salinity Gradient ◽  
P Concentration ◽  
Gradient Energy

Concentration capacitors with graphene hydrogel electrodes are proposed to efficiently harvest salinity gradient energy.

Bioinspired fractal nanochannels for high-performance salinity gradient energy conversion

2019 ◽  
Vol 418 ◽  
pp. 33-41 ◽  
Author(s):  
Zhengfei Kuang ◽  
Dijing Zhang ◽  
Yuemin Shen ◽  
Rui Long ◽  
Zhichun Liu ◽  
...  
Keyword(s):  
Energy Conversion ◽  
High Performance ◽  
Salinity Gradient ◽  
Gradient Energy

High performance asymmetric capacitive mixing with oppositely charged carbon electrodes for energy production from salinity differences

2017 ◽  
Vol 5 (38) ◽  
pp. 20374-20380 ◽  
Author(s):  
Fei Zhan ◽  
Gang Wang ◽  
Tingting Wu ◽  
Qiang Dong ◽  
Yulan Meng ◽  
...  
Keyword(s):  
Power Density ◽  
Energy Production ◽  
High Performance ◽  
Salinity Gradient ◽  
Average Power ◽  
Carbon Electrodes ◽  
Voltage Rise ◽  
Gradient Energy ◽  
Oppositely Charged

Asymmetric capacitive mixing (Asy-CapMix) for extracting salinity gradient energy is realized by using oppositely charged carbon electrodes. High performance in terms of voltage rise and average power density is achieved.

Space Charge Enhanced Ion Transport in Heterogeneous Polyelectrolyte/Alumina Nanochannel Membranes for High-Performance Osmotic Energy Conversion

2021 ◽  
Author(s):  
Chen-Wei Chang ◽  
Chien-Wei Chu ◽  
Yen-Shao Su ◽  
Li-Hsien Yeh
Keyword(s):  
Ion Transport ◽  
Space Charge ◽  
Energy Conversion ◽  
High Performance ◽  
Salinity Gradient ◽  
Clean Energy ◽  
Energy Resources ◽  
Global Energy ◽  
Energy Demands ◽  
Selective Membrane

Capturing osmotic energy from a salinity gradient through an ion-selective membrane is regarded as one of the renewable clean energy resources to solve the increasing global energy demands. However, suffering...

scholarly journals Atomic layer deposition triggered Fe-In-S cluster and gradient energy band in ZnInS photoanode for improved oxygen evolution reaction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Linxing Meng ◽  
Jinlu He ◽  
Xiaolong Zhou ◽  
Kaimo Deng ◽  
Weiwei Xu ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Energy Band ◽  
High Performance ◽  
Carrier Transport ◽  
Atomic Layer ◽  
Onset Potential ◽  
Layer Deposition ◽  
Gradient Energy

AbstractVast bulk recombination of photo-generated carriers and sluggish surface oxygen evolution reaction (OER) kinetics severely hinder the development of photoelectrochemical water splitting. Herein, through constructing a vertically ordered ZnInS nanosheet array with an interior gradient energy band as photoanode, the bulk recombination of photogenerated carriers decreases greatly. We use the atomic layer deposition technology to introduce Fe-In-S clusters into the surface of photoanode. First-principles calculations and comprehensive characterizations indicate that these clusters effectively lower the electrochemical reaction barrier on the photoanode surface and promote the surface OER reaction kinetics through precisely affecting the second and third steps (forming processes of O* and OOH*) of the four-electron reaction. As a result, the optimal photoanode exhibits the high performance with a significantly enhanced photocurrent of 5.35 mA cm−2 at 1.23 VRHE and onset potential of 0.09 VRHE. Present results demonstrate a robust platform for controllable surface modification, nanofabrication, and carrier transport.

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.

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