scholarly journals High performance aliphatic-heterocyclic benzyl-quaternary ammonium radiation-grafted anion-exchange membranes

2016 ◽  
Vol 9 (12) ◽  
pp. 3724-3735 ◽  
Author(s):  
Julia Ponce-González ◽  
Daniel K. Whelligan ◽  
Lianqin Wang ◽  
Rachida Bance-Soualhi ◽  
Ying Wang ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Quaternary Ammonium ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Exchange Membrane

High performance benzylpyrrolidinium anion-exchange membrane.

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).

scholarly journals Phenolphthalein Anilide Based Poly(Ether Sulfone) Block Copolymers Containing Quaternary Ammonium and Imidazolium Cations: Anion Exchange Membrane Materials for Microbial Fuel Cell

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 454
Author(s):  
Aruna Kumar Mohanty ◽  
Young-eun Song ◽  
Jung-rae Kim ◽  
Nowon Kim ◽  
Hyun-jong Paik
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Good Thermal Stability ◽  
Imidazolium Cations ◽  
Membrane Morphology ◽  
Exchange Membrane

A class of phenolphthalein anilide (PA)-based poly(ether sulfone) multiblock copolymers containing pendant quaternary ammonium (QA) and imidazolium (IM) groups were synthesized and evaluated as anion exchange membrane (AEM) materials. The AEMs were flexible and mechanically strong with good thermal stability. The ionomeric multiblock copolymer AEMs exhibited well-defined hydrophobic/hydrophilic phase-separated morphology in small-angle X-ray scattering and atomic force microscopy. The distinct nanophase separated membrane morphology in the AEMs resulted in higher conductivity (IECw = 1.3–1.5 mequiv./g, σ(OH−) = 30–38 mS/cm at 20 °C), lower water uptake and swelling. Finally, the membranes were compared in terms of microbial fuel cell performances with the commercial cation and anion exchange membranes. The membranes showed a maximum power density of ~310 mW/m2 (at 0.82 A/m2); 1.7 and 2.8 times higher than the Nafion 117 and FAB-PK-130 membranes, respectively. These results demonstrated that the synthesized AEMs were superior to Nafion 117 and FAB-PK-130 membranes.

scholarly journals Quaternized Chitosan-Based Anion Exchange Membrane Composited with Quaternized Poly(vinylbenzyl chloride)/Polysulfone Blend

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2714 ◽  
Author(s):  
Le Thi Tuyet Nhung ◽  
In Yea Kim ◽  
Young Soo Yoon
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Ionic Conductivities ◽  
Anion Exchange Membrane ◽  
Commercial Application ◽  
Anion Exchange Membranes ◽  
Quaternized Chitosan ◽  
Structure And Morphology ◽  
Exchange Membrane ◽  
Scanning Electron

An efficient and effective process for the production of high-performance anion exchange membranes (AEMs) is necessary for the commercial application of fuel cells. Therefore, in this study, quaternized poly vinylbenzyl chloride (QVBC) and polysulfone were composited with glycidyltrimethylammonium-chloride-quaternized chitosan (QCS) at different ratios (viz., 1 wt %, 5 wt %, and 10 wt %). The structure and morphology of the membranes were characterized by Fourier transform infrared spectroscopy and scanning electron microscopy, respectively. Further, the water uptake, swelling ratio, and ionic conductivities of the composite membrane at different wt % of QCS were evaluated. The membrane with 5% QCS exhibited an ionic conductivity of 49.6 mS/cm and 130 mS/cm at 25 °C and 70 °C, respectively.

Novel quaternary ammonium functional addition-type norbornene copolymer as hydroxide-conductive and durable anion exchange membrane for direct methanol fuel cells

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63215-63225 ◽  
Author(s):  
Xiaohui He ◽  
Jingyin Liu ◽  
Hongyu Zhu ◽  
Yan Zheng ◽  
Defu Chen
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Direct Methanol Fuel Cells ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Well Performance ◽  
Direct Methanol ◽  
Methanol Fuel Cells ◽  
Exchange Membrane

Novel quaternary ammonium functional addition-type norbornene copolymers, and their anion exchange membranes with effective hydrophilic–hydrophobic separation and well performance suitable for direct methanol fuel cells application are achieved.

scholarly journals A comparative study of side-chain-type poly(ether ether ketone) anion exchange membrane functionalized with different hetero-cycloaliphatic quaternary ammonium groups

RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 7975-7983 ◽  
Author(s):  
Dan Yao ◽  
Tonghui Wei ◽  
Lichao Shang ◽  
Hui Na ◽  
Chengji Zhao
Keyword(s):  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Anion Exchange Membrane ◽  
Side Chain ◽  
Anion Exchange Membranes ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Exchange Membrane ◽  
Chain Type

Anion exchange membranes based on side-chain-type quarternized poly(ether ether ketone)s QPEEKs containing different hetero-cycloaliphatic quaternary ammonium groups were prepared via polycondensation, bromomethylation and quaternization.

Spirocyclic quaternary ammonium cations for alkaline anion exchange membrane applications: an experimental and theoretical study

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94387-94398 ◽  
Author(s):  
Liang Gu ◽  
Huilong Dong ◽  
Zhe Sun ◽  
Youyong Li ◽  
Feng Yan
Keyword(s):  
Theoretical Analysis ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Theoretical Study ◽  
Anion Exchange Membrane ◽  
Ammonium Cation ◽  
Anion Exchange Membranes ◽  
Quaternary Ammonium Cations ◽  
Exchange Membrane

Spirocyclic quaternary ammonium cation based alkaline anion exchange membranes were synthesized and studied by both experimental and theoretical analysis.

Caustic stable anion-exchange membranes for EDR applications in municipal and industrial wastewater recovery: piloting and field investigations

2013 ◽  
Vol 8 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Harikrishnan Ramanan ◽  
Purnima Praturi ◽  
Neil Moe ◽  
Russell MacDonald ◽  
Li May Goh ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Industrial Wastewater ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Water Recovery ◽  
Research Activity ◽  
Field Investigations ◽  
Stable Anion ◽  
Exchange Membrane

GE membrane based Electrodialysis Reversal (EDR) systems offer attractive characteristics such as higher water recovery, increased resistance to scaling and fouling, and membrane stability in oxidative environments. Research activity at GE Water & Process Technologies, have extended these capabilities to include high pH environments, through the development of a new high performance anion exchange membrane that tolerates aggressive caustic cleaning conditions. This will enable the expanded application of EDR systems in markets that are limited by the currently practiced cleaning-in-place procedures.

scholarly journals A comparative study of anion-exchange membranes tethered with different hetero-cycloaliphatic quaternary ammonium hydroxides

2017 ◽  
Vol 5 (41) ◽  
pp. 21965-21978 ◽  
Author(s):  
Hai-Son Dang ◽  
Patric Jannasch
Keyword(s):  
Fuel Cells ◽  
Comparative Study ◽  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Long Term Performance ◽  
Term Performance ◽  
Exchange Membrane

Quaternary ammonium (QA) cations with high alkaline stability are crucial for the long term performance of anion-exchange membrane (AEM) fuel cells.

Development of a novel durable aromatic anion exchange membrane using a thermally convertible precursor

2018 ◽  
Vol 54 (77) ◽  
pp. 10820-10823 ◽  
Author(s):  
Hafis P. R. Graha ◽  
Shinji Ando ◽  
Shoji Miyanishi ◽  
Takeo Yamaguchi
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
New Approach ◽  
Exchange Membrane

A new approach for obtaining high-performance anion exchange membranes by using a thermally convertible precursor has been developed.

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