Preparation of an anion-exchange membrane by the amination of chlorinated polypropylene and polyethyleneimine at a low temperature and its ion-exchange property

2009 ◽  
Vol 112 (2) ◽  
pp. 830-835 ◽  
Author(s):  
Joo-Hee Hong ◽  
Myung-Chul Park ◽  
Sung-Kyu Hong ◽  
Byoung-Sik Kim
Keyword(s):  
Low Temperature ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Exchange Property ◽  
Exchange Membrane

Using Ion Exchange Capacity to Control Water Uptake in Electrodes of Low-Temperature Anion Exchange Membrane Electrolyzers

2020 ◽  
Vol MA2020-02 (38) ◽  
pp. 2442-2442
Author(s):  
Garrett Huang ◽  
Mrinmay Mandal ◽  
Alexandra Dobbs ◽  
Katelyn Groenhout ◽  
Paul A Kohl
Keyword(s):  
Low Temperature ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Water Uptake ◽  
Exchange Capacity ◽  
Anion Exchange Membrane ◽  
Ion Exchange Capacity ◽  
Exchange Membrane ◽  
Control Water

In-situ Ion-Exchange Preparation and Topological Transformation of Trimetal-Organic Frameworks for Efficient Electrocatalytic Water Oxidation

2021 ◽  
Author(s):  
Bao Yu Xia ◽  
Ya Yan ◽  
Xianying Wang ◽  
Yuan Kong ◽  
Jiangwei Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Water Oxidation ◽  
Water Electrolysis ◽  
Anion Exchange Membrane ◽  
Topological Transformation ◽  
Exchange Membrane ◽  
Kinetics Of

Anion exchange membrane water electrolysis (AEMWE) with non-precious catalysts offers a promising route for industrial hydrogen production. However, the sluggish kinetics of anodic water oxidation hinder its efficiency and cost....

Determination of ion-exchange equilibrium coefficient for a MA-41 anion-exchange membrane in sodium carbonate/hydrocarbonate solutions

Desalination ◽  
2002 ◽  
Vol 149 (1-3) ◽  
pp. 459-464 ◽  
Author(s):  
Elena Volodina ◽  
Yurii Senik ◽  
Oksana Basova ◽  
Natalia Pismenskaya ◽  
Victor Nikonenko ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Anion Exchange ◽  
Sodium Carbonate ◽  
Anion Exchange Membrane ◽  
Exchange Equilibrium ◽  
Exchange Membrane

scholarly journals Effect of ionic strength on the ion exchange equilibrium between AMX membrane and electrolyte solutions

2015 ◽  
Vol 51 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Islem Louati ◽  
Fatma Guesmi ◽  
Akram Chaabouni ◽  
Chiraz Hannachi ◽  
Béchir Hamrouni
Keyword(s):  
Ionic Strength ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Natural Waters ◽  
Electrolyte Solutions ◽  
Anion Exchange Membrane ◽  
Exchange Equilibrium ◽  
Thermodynamic Constants ◽  
Separation Factors ◽  
Exchange Membrane

The effect of ionic strength variation on the ion exchange equilibrium between AMX anion exchange membrane and electrolyte solutions containing the most dominant anions on natural waters (Cl−, NO3−, and SO42−) was studied. All experiments were carried out at a constant temperature of 25 °C. Ion exchange isotherms were established, at different ionic strengths from 0.1 to 0.5 M, for the systems (Cl−/NO3−), (Cl−/SO42−) and (NO3−/SO42−). Obtained results showed that for I = 0.1 M the affinity order is SO42 −>NO3−>Cl−. For I = 0.2 M this order is NO3−>SO42−>Cl−. For 0.3 and 0.5 M the AMX membrane becomes more selective for chloride than for nitrate or sulfate. Selectivity coefficients KNO3−Cl−, K2Cl−SO42− and K2NO3−SO42−, thermodynamic constants, and separation factors were calculated and decreased with the increase of ionic strength.

scholarly journals Custom-Made Ion Exchange Membranes at Laboratory Scale for Reverse Electrodialysis

Membranes ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 145 ◽  
Author(s):  
Liliana Villafaña-López ◽  
Daniel M. Reyes-Valadez ◽  
Oscar A. González-Vargas ◽  
Victor A. Suárez-Toriello ◽  
Jesús S. Jaime-Ferrer
Keyword(s):  
Ion Exchange ◽  
Cation Exchange ◽  
Anion Exchange ◽  
Structural Modification ◽  
Anion Exchange Membrane ◽  
Laboratory Scale ◽  
Cation Exchange Membrane ◽  
Ion Exchange Membranes ◽  
Reverse Electrodialysis ◽  
Exchange Membrane

Salinity gradient power is a renewable, non-intermittent, and neutral carbon energy source. Reverse electrodialysis is one of the most efficient and mature techniques that can harvest this energy from natural estuaries produced by the mixture of seawater and river water. For this, the development of cheap and suitable ion-exchange membranes is crucial for a harvest profitability energy from salinity gradients. In this work, both anion-exchange membrane and cation-exchange membrane based on poly(epichlorohydrin) and polyvinyl chloride, respectively, were synthesized at a laboratory scale (255 c m 2) by way of a solvent evaporation technique. Anion-exchange membrane was surface modified with poly(ethylenimine) and glutaraldehyde, while cellulose acetate was used for the cation exchange membrane structural modification. Modified cation-exchange membrane showed an increase in surface hydrophilicity, ion transportation and permselectivity. Structural modification on the cation-exchange membrane was evidenced by scanning electron microscopy. For the modified anion exchange membrane, a decrease in swelling degree and an increase in both the ion exchange capacity and the fixed charge density suggests an improved performance over the unmodified membrane. Finally, the results obtained in both modified membranes suggest that an enhanced performance in blue energy generation can be expected from these membranes using the reverse electrodialysis technique.

scholarly journals Fabrication of a composite anion exchange membrane with aligned ion channels for a high-performance non-aqueous vanadium redox flow battery

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5010-5025 ◽  
Author(s):  
Jae-Hun Kim ◽  
Seungbo Ryu ◽  
Sandip Maurya ◽  
Ju-Young Lee ◽  
Ki-Won Sung ◽  
...  
Keyword(s):  
Ion Channels ◽  
Ion Exchange ◽  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Redox Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox

Fabrication of high-conductivity ion exchange membranes (IEMs) is crucial to improve the performance of non-aqueous vanadium redox flow batteries (NAVRFBs).

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