High conductivity and alkaline stability of anion exchange membrane containing multiple flexible side-chain piperidinium ions

2021 ◽  
Author(s):  
Zhengwang Tao ◽  
Chenyi Wang ◽  
Xiaoyan Zhao ◽  
Jian Li ◽  
Qiang Ren
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
High Conductivity ◽  
Side Chain ◽  
Anion Exchange Membranes ◽  
Aryl Ether ◽  
Alkaline Stability ◽  
Exchange Membrane

A classs of poly(aryl ether sulfone)s anion exchange membranes (PAES-8mPip-x) containing eight flexible piperidinium ions in the repeating unit were prepared using 4,4'-difluorodiphenylsulfone, 2,2'-bis(4-Hydroxyphenyl)-hexafluoropropane, 3,3',5,5'-tetrakis(3'',5''-dimethoxyphenyl)-4,4'-difluorodiphenyl sulfone via aromatic nucleophilic polycondensation,...

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).

High conductivity and alkali-resistant stability of imidazole side chain crosslinked anion exchange membrane

Polymer ◽  
2020 ◽  
Vol 211 ◽  
pp. 123085
Author(s):  
Kai Yang ◽  
Hongzhe Ni ◽  
Tianen Shui ◽  
Xiaoyu Chi ◽  
Wenbo Chen ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
High Conductivity ◽  
Side Chain ◽  
Exchange Membrane

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.

Hyper-branched anion exchange membranes with high conductivity and chemical stability

2016 ◽  
Vol 52 (66) ◽  
pp. 10141-10143 ◽  
Author(s):  
Qianqian Ge ◽  
Yazhi Liu ◽  
Zhengjin Yang ◽  
Bin Wu ◽  
Min Hu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Chemical Stability ◽  
Polymer Electrolytes ◽  
Anion Exchange Membrane ◽  
High Conductivity ◽  
Anion Exchange Membranes ◽  
Branched Polymer ◽  
Exchange Membrane

We reported herein the design and preparation of hyper-branched polymer electrolytes intended for alkaline anion exchange membrane fuel cells.

Preparation of Poly (aryl ether) Anion Ionomers with N-Methyl Imidazolium Groups

2012 ◽  
Vol 560-561 ◽  
pp. 221-225
Author(s):  
Qun Hui Hu ◽  
Wen Xiao Wang ◽  
Shu Bo Wang ◽  
Yu Ming Shang ◽  
Min Xu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electrochemical Properties ◽  
Anion Exchange ◽  
Room Temperature ◽  
Anion Exchange Membrane ◽  
Anion Exchange Membranes ◽  
Aryl Ether ◽  
Excellent Thermal Stability ◽  
Methyl Imidazole ◽  
Exchange Membrane

Anion exchange membranes based on poly(aryl ether oxadiazole)s (FPAEO) were prepared by quaternization of bromomethylated FPAEO with N-methyl imidazole. The structures of the obtained polymers were characterized and confirmed with 1H-NMR measurement. The physical and electrochemical properties of anion exchange membranes were also studied. The conductivity of FPAEO-xMIM membranes were almost higher than 10−2 S/cm at room temperature. In addition, TGA revealed that the AEMs based on imidazolium salts have excellent thermal stability. The experimental results suggested that the obtained AEMs may be potential membranes for anion exchange membrane fuel cells

Side-chain manipulation of poly (phenylene oxide) based anion exchange membrane: Alkoxyl extender integrated with flexible spacer

2021 ◽  
Vol 624 ◽  
pp. 119088
Author(s):  
Lv Li ◽  
Jiaao Wang ◽  
Manzoor Hussain ◽  
Lingling Ma ◽  
Naeem Akhtar Qaisrani ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Side Chain ◽  
Flexible Spacer ◽  
Phenylene Oxide ◽  
Exchange Membrane

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.

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