Results 41 to 50 of about 3,230,374 (291)

Comparison of Physicochemical Properties of Two Types of Polyepichlorohydrin-Based Anion Exchange Membranes for Reverse Electrodialysis

open access: yesMembranes, 2022
The development of the most effective, suitable and economic ion-exchange membranes is crucial for reverse electrodialysis (RED)—the most widely studied process to harvest salinity gradient energy from mixing seawater and river water.
Ezgi Karakoç, Enver Güler
doaj   +1 more source

Perspective: Morphology and ion transport in ion-containing polymers from multiscale modeling and simulations

open access: yesFrontiers in Chemistry, 2022
Ion-containing polymers are soft materials composed of polymeric chains and mobile ions. Over the past several decades they have been the focus of considerable research and development for their use as the electrolyte in energy conversion and storage ...
Zhenghao Zhu, Stephen J. Paddison
doaj   +1 more source

Ion Transport Characteristics in Membranes for Direct Formate Fuel Cells

open access: yesFrontiers in Chemistry, 2020
Ion exchange membranes are widely used in fuel cells to physically separate two electrodes and functionally conduct charge-carrier ions, such as anion exchange membranes and cation exchange membranes.
Xiangyu Su, Zhefei Pan, Liang An
doaj   +1 more source

Finite elements-based 2D theoretical analysis of the effect of IEX membrane thickness and salt solution residence time on the ion transport within a salinity gradient power reverse electrodialysis half cell pair [PDF]

open access: yes, 2013
Reverse electrodialysis electrical power generation is based on the transport of salt ions through ion conductive membranes. The ion flux, equivalent to an electric current, results from a salinity gradient, induced by two salt solutions at significantly
Etienne, Brauns
core   +1 more source

Heterogeneous Anion-Exchange Membranes with Enhanced Ion Conductivity for Continuous Electrodeionization

open access: yes, 2023
In this study, the optimal fabrication parameters of a heterogeneous anion-exchange membrane (AEM) using an ionomer binder are investigated to improve the performance of continuous electrodeionization (CEDI) for producing ultrapure water.
Moon-Sung Kang, Ji-Min Lee
core   +1 more source

Water Splitting and Transport of Ions in Electromembrane System with Bilayer Ion-Exchange Membrane

open access: yesMembranes, 2020
Bilayer ion-exchange membranes are mainly used for separating single and multiply charged ions. It is well known that in membranes in which the layers have different charges of the ionogenic groups of the matrix, the limiting current decreases, and the ...
Stanislav Melnikov   +4 more
doaj   +1 more source

Study of the Electrical Conductivity of Ion-Exchange Resins and Membranes in Equilibrium Solutions of Inorganic Electrolytes

open access: yesMembranes, 2022
The study of the electrical conductivity of ion-exchange membranes in equilibrium electrolyte solutions is of great importance for the theory of membrane processes, in particular for practical electrodialysis.
Oleksandr Petrov   +6 more
doaj   +1 more source

Study the Transport Properties of Anion and Cation Exchange Membranes toward Various Ions Using Chronopotentiometry [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2017
The transport properties of various anion and cation exchange membranes were studied in different electrolyte solutions using chronopotentiometry technique to get insight about the influence of the counter ion on the transport properties of the membranes.
Amir Ashrafi   +2 more
doaj  

Characterization of Anion Exchange Membrane Containing Epoxy Ring and C–Cl Bond Quaternized by Various Amine Groups for Application in Fuel Cells

open access: yesEnergies, 2015
Anion exchange membranes were synthesized from different compositions of glycidyl methacrylate (GMA) and vinylbenzyl chloride (VBC), with constant content of divinyl benzene (DVB) by radical polymerization using benzoyl peroxide (BPO) on non-woven ...
Sung Kuk Jeong   +4 more
doaj   +1 more source

Effect of the resin content in cation-exchange membranes on development of electroconvection

open access: yesElectrochemistry Communications, 2020
Comparative analysis of the effect of ion-exchanger content in heterogeneous sulfonated ion-exchange membranes Ralex CM Pes produced by MEGA a.s. (Czech Republic) on their microstructure, current-voltage characteristics and intensity of electroconvective
E.M. Akberova, V.I. Vasil'eva
doaj   +1 more source

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