Comparative Investigation of Electrocatalytic Oxidation By Proton-Exchange-Membrane and Anion-Exchange-Membrane Electrolyses

2020 ◽  
Vol MA2020-02 (43) ◽  
pp. 2773-2773
Author(s):  
Yuto Ido ◽  
Yutaro Shimizu ◽  
Juri Minoshima ◽  
Atsushi Fukazawa ◽  
Kenta Tanaka ◽  
...  
Author(s):  
Maša Hren ◽  
Mojca Božič ◽  
Darinka Fakin ◽  
Karin Stana Kleinschek ◽  
Selestina Gorgieva

Alkaline anion exchange membrane fuel cells (AAEMFC) are attracting ever-increasing attention, as they are promising electrochemical devices for energy production, presenting a viable opponent to proton exchange membrane fuel cells (PEMFCs).


RSC Advances ◽  
2020 ◽  
Vol 10 (61) ◽  
pp. 37429-37438
Author(s):  
Immanuel Vincent ◽  
Eun-Chong Lee ◽  
Hyung-Man Kim

Anion exchange membrane (AEM) electrolysis eradicates platinum group metal electrocatalysts and diaphragms and is used in conventional proton exchange membrane (PEM) electrolysis and alkaline electrolysis.


2020 ◽  
Vol 4 (5) ◽  
pp. 2114-2133 ◽  
Author(s):  
Hamish Andrew Miller ◽  
Karel Bouzek ◽  
Jaromir Hnat ◽  
Stefan Loos ◽  
Christian Immanuel Bernäcker ◽  
...  

Hydrogen production using water electrolysers equipped with an anion exchange membrane, a pure water feed and cheap components (catalysts and bipolar plates) can challenge proton exchange membrane electrolysis systems as the state of the art.


RSC Advances ◽  
2015 ◽  
Vol 5 (43) ◽  
pp. 34100-34108 ◽  
Author(s):  
T. Pandiarajan ◽  
L. John Berchmans ◽  
S. Ravichandran

Alkaline anion exchange membrane water electrolysis (AEMWE) is considered to be an alternative to proton exchange membrane water electrolysis (PEMWE), owing to the use of non-noble meta/metal oxides in AEMWE.


Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2827
Author(s):  
Tae Yang Son ◽  
Kwang Seop Im ◽  
Ha Neul Jung ◽  
Sang Yong Nam

In this study, blended anion exchange membranes were prepared using polyphenylene oxide containing quaternary ammonium groups and polyvinylidene fluoride. A polyvinylidene fluoride with high hydrophobicity was blended in to lower the vanadium ion permeability, which increased when the hydrophilicity increased. At the same time, the dimensional stability also improved due to the excellent physical properties of polyvinylidene fluoride. Subsequently, permeation of the vanadium ions was prevented due to the positive charge of the anion exchange membrane, and thus the permeability was relatively lower than that of a commercial proton exchange membrane. Due to the above properties, the self-discharge of the blended anion exchange membrane (30.1 h for QA–PPO/PVDF(2/8)) was also lower than that of the commercial proton exchange membrane (27.9 h for Nafion), and it was confirmed that it was an applicable candidate for vanadium redox flow batteries.


2020 ◽  
Vol MA2020-02 (35) ◽  
pp. 2237-2237
Author(s):  
Michael Pagels ◽  
Santosh Adhikari ◽  
Ramali Walgama ◽  
Asheesh Singh ◽  
Junyoung Han ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6709
Author(s):  
Zhihao Shang ◽  
Ryszard Wycisk ◽  
Peter Pintauro

A fuel cell is an electrochemical device that converts the chemical energy of a fuel and oxidant into electricity. Cation-exchange and anion-exchange membranes play an important role in hydrogen fed proton-exchange membrane (PEM) and anion-exchange membrane (AEM) fuel cells, respectively. Over the past 10 years, there has been growing interest in using nanofiber electrospinning to fabricate fuel cell PEMs and AEMs with improved properties, e.g., a high ion conductivity with low in-plane water swelling and good mechanical strength under wet and dry conditions. Electrospinning is used to create either reinforcing scaffolds that can be pore-filled with an ionomer or precursor mats of interwoven ionomer and reinforcing polymers, which after suitable processing (densification) form a functional membrane. In this review paper, methods of nanofiber composite PEMs and AEMs fabrication are reviewed and the properties of these membranes are discussed and contrasted with the properties of fuel cell membranes prepared using conventional methods. The information and discussions contained herein are intended to provide inspiration for the design of high-performance next-generation fuel cell ion-exchange membranes.


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