Results 191 to 200 of about 23,171 (237)

Building with Light: Photoactive Colloids as the Next Generation Meta-Atoms. [PDF]

open access: yesNano Lett
Liu J   +6 more
europepmc   +1 more source

Nanofluidics for osmotic energy conversion

Nature Reviews Materials, 2021
The osmotic pressure difference between river water and seawater is a promising source of renewable energy. However, current osmotic energy conversion processes show limited power output, mainly owing to the low performance of commercial ion-exchange membranes.
Zhen Zhang, Liping Wen, Zhen Zhang
exaly   +2 more sources

Asymmetric Nanoporous Alumina Membranes for Nanofluidic Osmotic Energy Conversion

Chemistry – An Asian Journal, 2023
AbstractThe potential of harnessing osmotic energy from the interaction between seawater and river water has been recognized as a promising, eco‐friendly, renewable, and sustainable source of power. The reverse electrodialysis (RED) technology has gained significant interest for its ability to generate electricity by combining concentrated and diluted ...
Yao Zhang   +5 more
openaire   +2 more sources

Stack Thermo-Osmotic System for Low-Grade Thermal Energy Conversion

ACS Applied Materials & Interfaces, 2021
Thermo-osmotic energy conversion (TOEC) technology, developed from membrane distillation, is an emerging method that has the potential of obtaining electricity efficiently from a low-grade heat source but faces the difficult problem of pump power loss. In this study, we build a novel TOEC system with a multistage architecture that can work without pump
Ji Li   +7 more
openaire   +2 more sources

Essence of the Enhanced Osmotic Energy Conversion in a Covalent Organic Framework Monolayer

ACS Nano, 2022
Low membrane conductivity originated from a high membrane thickness has long been the "Achilles heel" of the conventional polymeric membrane, greatly hampering the improvement of the output power density in osmotic power generation. Herein, we demonstrate a molecularly-thin two-dimensional (2D) covalent organic framework (COF) monolayer membrane ...
Zhiwei Huang   +7 more
openaire   +2 more sources

Thermo-osmotic energy conversion and storage by nanochannels

Journal of Materials Chemistry A, 2019
This work reports the conversion and storage of thermo-osmotic energy from combined salinity and temperature gradients by using highly permselective nanochannels.
Kexin Chen   +5 more
openaire   +1 more source

Nacre‐Inspired Mechanically Robust Films for Osmotic Energy Conversion

Advanced Functional Materials, 2023
AbstractMXene, a new class of 2D layered materials, is considered a candidate for the reverse electrodialysis (RED) film because the laminated MXene nanochannels with charged functional groups provide an excellent ionic selectivity and conductivity. However, the MXene‐based ion‐exchange films suffer from weak mechanical properties and instability in ...
Jun Rao   +6 more
openaire   +1 more source

Conversion of Osmotic into Mechanical Energy in Systems with Charged Membranes

Journal of Non-Equilibrium Thermodynamics, 1990
Within the framework of irreversible thermodynamics the problem of osmotic to mechanical energy conversion in systems with charged membranes has been formulated. Using the numerical results for the conductance coefficients for the system Nafion 120 membrane/single salt and alkali solutions, the couplings between the volume and the water osmotic fluxes,
A. Narebska, S. Koter, W. Kujawski
openaire   +1 more source

Osmotic Energy Conversion Techniques from Seawater

2010
This paper firstly introduces the principles of Pressure Retarded Osmosis (PRO) and Reverse Electro Dialysis (RED). It is concluded that the RED method is more suitable than the PRO method for power generation from seawater. Theoretical analysis of RED stack is made for the design of a test RED compartment.
Yihuai Hu, Juan Ji
openaire   +1 more source

Polydopamine functionalized graphene oxide membrane with the sandwich structure for osmotic energy conversion

Journal of Colloid and Interface Science, 2023
Ion-selective membrane is the key component for osmotic energy conversion. Nanofluid channels based on two-dimensional materials have advantages of facile preparation, tunable channel size, and easy upscaling, which is promising for efficient osmotic energy harvesting.
Jinlin, Hao   +7 more
openaire   +2 more sources

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