Thermochemical Stability Study of Alkyl-Tethered Quaternary Ammonium Cations for Anion Exchange Membrane Fuel Cells

2017 ◽  
Vol 164 (13) ◽  
pp. F1279-F1285 ◽  
Author(s):  
Angela D. Mohanty ◽  
Steven E. Tignor ◽  
Matthew R. Sturgeon ◽  
Hai Long ◽  
Bryan S. Pivovar ◽  
...  
2019 ◽  
Vol 7 (12) ◽  
pp. 6883-6893 ◽  
Author(s):  
Shuai Zhang ◽  
Xiuling Zhu ◽  
Cuihong Jin

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).


RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63215-63225 ◽  
Author(s):  
Xiaohui He ◽  
Jingyin Liu ◽  
Hongyu Zhu ◽  
Yan Zheng ◽  
Defu Chen

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.


RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94387-94398 ◽  
Author(s):  
Liang Gu ◽  
Huilong Dong ◽  
Zhe Sun ◽  
Youyong Li ◽  
Feng Yan

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


2017 ◽  
Vol 5 (41) ◽  
pp. 21965-21978 ◽  
Author(s):  
Hai-Son Dang ◽  
Patric Jannasch

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


Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 454
Author(s):  
Aruna Kumar Mohanty ◽  
Young-eun Song ◽  
Jung-rae Kim ◽  
Nowon Kim ◽  
Hyun-jong Paik

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.


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