Effect of Polymer Architecture on the Nanophase Segregation, Ionic Conductivity, and Electro-Osmotic Drag of Anion Exchange Membranes

2019 ◽  
Vol 123 (14) ◽  
pp. 8717-8726 ◽  
Author(s):  
Jibao Lu ◽  
Adam Barnett ◽  
Valeria Molinero
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Polymer Architecture

Crosslinked metallo-polyelectrolytes with enhanced flexibility and dimensional stability for anion-exchange membranes

2020 ◽  
Vol 11 (28) ◽  
pp. 4542-4546 ◽  
Author(s):  
Tianyu Zhu ◽  
Chuanbing Tang
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Dimensional Stability ◽  
Anion Exchange Membranes

We report a class of crosslinked metallo-polyelectrolytes as anion exchange membranes with exceptional mechanical flexibility, dimensional stability and ionic conductivity.

A deep learning protocol for analyzing and predicting ionic conductivity of anion exchange membranes

2021 ◽  
pp. 119983
Author(s):  
Fu-Heng Zhai ◽  
Qing-Qing Zhan ◽  
Yun-Fei Yang ◽  
Ni-Ya Ye ◽  
Rui-Ying Wan ◽  
...  
Keyword(s):  
Deep Learning ◽  
Ionic Conductivity ◽  
Anion Exchange ◽  
Anion Exchange Membranes

Anion exchange membranes with clusters of alkyl ammonium group for mitigating water swelling but not ionic conductivity

2018 ◽  
Vol 550 ◽  
pp. 101-109 ◽  
Author(s):  
Md. Masem Hossain ◽  
Jianqiu Hou ◽  
Liang Wu ◽  
Qianqian Ge ◽  
Xian Liang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Ammonium Group ◽  
Water Swelling ◽  
Alkyl Ammonium

New Polyethylene Based Anion Exchange Membranes (PE–AEMs) with High Ionic Conductivity

2011 ◽  
Vol 44 (15) ◽  
pp. 5937-5946 ◽  
Author(s):  
Min Zhang ◽  
Hyung Kyu Kim ◽  
Elena Chalkova ◽  
Fedkin Mark ◽  
Serguei N. Lvov ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
High Ionic Conductivity ◽  
Anion Exchange Membranes

scholarly journals Investigating the suitability of poly tetraarylphosphonium based anion exchange membranes for electrochemical applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Muthumeenal Arunachalam ◽  
Alessandro Sinopoli ◽  
Farida Aidoudi ◽  
Stephen E. Creager ◽  
Rhett Smith ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Mechanical Stability ◽  
Precious Metals ◽  
Composite Membranes ◽  
Anion Exchange Membranes ◽  
Capital Costs ◽  
Alkaline Environment ◽  
Alkaline Stability ◽  
Electrochemical Applications

AbstractAnion exchange membranes (AEMs) are becoming increasingly common in electrochemical energy conversion and storage systems around the world (EES). Proton-/cation-exchange membranes (which conduct positive charged ions such as H+ or Na+) have historically been used in many devices such as fuel cells, electrolysers, and redox flow batteries. High capital costs and the use of noble metal catalysts are two of the current major disadvantages of polymer electrolyte membrane (PEM)-based systems. AEMs may be able to overcome the limitations of conventional PEMs. As a result, polymers with anion exchange properties have recently attracted a lot of attention due to their significant benefits in terms of transitioning from a highly acidic to an alkaline environment, high kinetics for oxygen reduction and fuel oxidation in an alkaline environment, and lower cost due to the use of non-precious metals. The aim of this research was to learn more about the development of a new AEM based on poly tetraarylphosphonium ionomers (pTAP), which has high ionic conductivity, alkaline stability, thermal stability, and good mechanical properties, making it a more cost-effective and stable alternative to conventional and commercial AEMs. A simple solution casting method was used to build novel anion exchange composite membranes with controlled thicknesses using the synthesized pTAP with polysulfone (PS). To ensure their suitability for use as an electrolyte in alkaline electrochemical systems, the composite membranes were characterized using FTIR, XRD, water uptake, ionic conductivity, and alkaline stability. At 40 °C, the PS/pTAP 40/60 percent membrane had a maximum ionic conductivity of 4.2 mS/cm. The thermal and mechanical stability of the composite membranes were also examined, with no substantial weight loss observed up to 150 °C. These findings pave the way for these membranes to be used in a wide variety of electrochemical applications.

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