scholarly journals Alkaline membrane fuel cells: anion exchange membranes and fuels

2021 ◽  
Author(s):  
Maša Hren ◽  
Mojca Božič ◽  
Darinka Fakin ◽  
Karin Stana Kleinschek ◽  
Selestina Gorgieva
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Energy Production ◽  
Proton Exchange Membrane ◽  
Anion Exchange Membrane ◽  
Proton Exchange ◽  
Anion Exchange Membranes ◽  
Electrochemical Devices ◽  
Alkaline Membrane ◽  
Exchange Membrane

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).

scholarly journals Electrospun Composite Proton-Exchange and Anion-Exchange Membranes for Fuel Cells

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6709
Author(s):  
Zhihao Shang ◽  
Ryszard Wycisk ◽  
Peter Pintauro
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Anion Exchange ◽  
High Performance ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Anion Exchange Membranes ◽  
Dry Conditions ◽  
Water Swelling ◽  
Exchange Membrane

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.

scholarly journals Non-fluorinated pre-irradiation-grafted (peroxidated) LDPE-based anion-exchange membranes with high performance and stability

2017 ◽  
Vol 10 (10) ◽  
pp. 2154-2167 ◽  
Author(s):  
Lianqin Wang ◽  
Jethro J. Brink ◽  
Ye Liu ◽  
Andrew M. Herring ◽  
Julia Ponce-González ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Low Density Polyethylene ◽  
Anion Exchange Membranes ◽  
Low Density ◽  
Alkaline Membrane ◽  
Exchange Membrane

A radiation-grafted low density polyethylene-based anion-exchange membrane that is mechanically robust enough to routinely test in alkaline membrane fuel cells at 80 °C.

scholarly journals Blended Anion Exchange Membranes for Vanadium Redox Flow Batteries

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2827
Author(s):  
Tae Yang Son ◽  
Kwang Seop Im ◽  
Ha Neul Jung ◽  
Sang Yong Nam
Keyword(s):  
Anion Exchange ◽  
Polyvinylidene Fluoride ◽  
Proton Exchange Membrane ◽  
Anion Exchange Membrane ◽  
Proton Exchange ◽  
Anion Exchange Membranes ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox

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.

scholarly journals Imidazolium-based anion exchange membranes for alkaline anion fuel cells: elucidation of the morphology and the interplay between the morphology and properties

Soft Matter ◽  
2016 ◽  
Vol 12 (5) ◽  
pp. 1567-1578 ◽  
Author(s):  
Yue Zhao ◽  
Kimio Yoshimura ◽  
Hideyuki Shishitani ◽  
Susumu Yamaguchi ◽  
Hirohisa Tanaka ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Exchange Membrane

We investigated the morphology of a new graft-type anion exchange membrane by SANS technique.

scholarly journals ETFE-based anion-exchange membrane ionomer powders for alkaline membrane fuel cells: a first performance comparison of head-group chemistry

2018 ◽  
Vol 6 (47) ◽  
pp. 24330-24341 ◽  
Author(s):  
Ana Laura Gonçalves Biancolli ◽  
Daniel Herranz ◽  
Lianqin Wang ◽  
Gabriela Stehlíková ◽  
Rachida Bance-Soualhi ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Performance Comparison ◽  
Anion Exchange Membrane ◽  
Head Group ◽  
Alkaline Membrane ◽  
Exchange Membrane

Radiation-grafted anion-exchange ionomer powders were tested in anion-exchange membrane fuel cells.

Development of a high-performance anion exchange membrane using poly(isatin biphenylene) with flexible heterocyclic quaternary ammonium cations for alkaline fuel cells

2019 ◽  
Vol 7 (12) ◽  
pp. 6883-6893 ◽  
Author(s):  
Shuai Zhang ◽  
Xiuling Zhu ◽  
Cuihong Jin
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Aryl Ether ◽  
Alkaline Fuel Cells ◽  
Quaternary Ammonium Cations ◽  
Exchange Membrane

A series of quaternary ammonium-tethered poly(isatin biphenylene)s (PIBs) were prepared devoid of alkaline labile aryl ether bonds via superacid-catalyzed polymerization and explored as highly alkaline stable backbones of anion exchange membranes (AEMs).

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