Improvement in Thermal Stability of Anion-exchange Membranes for Fuel Cell Applications by Controlling Water State

2013 ◽  
Vol 42 (1) ◽  
pp. 14-16 ◽  
Author(s):  
Hyangmi Jung ◽  
Hidenori Ohashi ◽  
Takanori Tamaki ◽  
Takeo Yamaguchi
Keyword(s):  
Thermal Stability ◽  
Fuel Cell ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Water State ◽  
Thermal Stability Of

Chemical and Thermal Stability of Poly(phenylene oxide)-Based Anion Exchange Membranes Containing Alkyl Side Chains

2018 ◽  
Vol 165 (14) ◽  
pp. F1133-F1138 ◽  
Author(s):  
Alina Amel ◽  
Neta Yitzhack ◽  
Alina Beylin ◽  
Jing Pan ◽  
Michael A. Hickner ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Anion Exchange ◽  
Side Chains ◽  
Anion Exchange Membranes ◽  
Phenylene Oxide ◽  
Alkyl Side Chains ◽  
Thermal Stability Of

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.

Anion-exchange Membranes Containing Fluorinated Poly(arylene ether)s: Properties and Application in Pt-free Hydrazine Fuel Cell

2016 ◽  
Vol 45 (6) ◽  
pp. 664-666 ◽  
Author(s):  
Eriko Nishino ◽  
Junko Yamada ◽  
Koichiro Asazawa ◽  
Susumu Yamaguchi ◽  
Manai Shimada ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Arylene Ether

In situ construction of interconnected ion transfer channels in anion-exchange membranes for fuel cell application

2017 ◽  
Vol 5 (8) ◽  
pp. 4003-4010 ◽  
Author(s):  
Jiangju Si ◽  
Haining Wang ◽  
Shanfu Lu ◽  
Xin Xu ◽  
Sikan Peng ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Ion Transfer ◽  
Trade Off ◽  
Fuel Cell Application ◽  
Transfer Channels

By modulating the amphiphilic architectures, 3D well-connected nano-channels are constructed and a trade-off between conductivity and stability in AEMs is achieved.

scholarly journals Hydroxide Conduction Enhancement of Chitosan Membranes by Functionalized MXene

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2335 ◽  
Author(s):  
Lina Wang ◽  
Benbing Shi
Keyword(s):  
Thermal Stability ◽  
Fuel Cell ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Alkaline Fuel Cell ◽  
Chitosan Matrix ◽  
Fuel Cell Application ◽  
Interfacial Compatibility ◽  
Chitosan Membranes ◽  
Exchange Membrane

In this study, imidazolium brushes tethered by –NH2-containing ligands were grafted onto the surface of a 2D material, MXene, using precipitation polymerization followed by quaternization. Functionalized MXene was embedded into chitosan matrix to prepare a hybrid alkaline anion exchange membrane. Due to high interfacial compatibility, functionalized MXene was homogeneously dispersed in chitosan matrix, generating continuous ion conduction channels and then greatly enhancing OH− conduction property (up to 172%). The ability and mechanism of OH− conduction in the membrane were elaborated based on systematic tests. The mechanical-thermal stability and swelling resistance of the membrane were evidently augmented. Therefore, it is a promising anion exchange membrane for alkaline fuel cell application.

Preparation of Anion Exchange Membranes Base on Fluoro-Polyacrylate for Alkaline Fuel Cells

2012 ◽  
Vol 485 ◽  
pp. 84-87
Author(s):  
Jun Fang ◽  
Yong Bin Wu ◽  
Yan Mei Zhang
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Radical Polymerization ◽  
Anion Exchange ◽  
Butyl Methacrylate ◽  
Anion Exchange Membranes ◽  
Reaction Conditions ◽  
Alkaline Fuel Cells ◽  
Fuel Cell Application ◽  
Potential Applications

A series of hydroxyl conducting anion exchange membranes based on the copolymer of vinylbenzyl chloride, butyl methacrylate and fluoro-polyacrylate were prepared by radical polymerization, quaternization and alkalization. The reaction conditions of polymerization were discussed and the potential applications of the resulting membranes in alkaline fuel cells were assessed. The results show that the membranes have adequate conductivity for fuel cell application.

scholarly journals Synergistic Effect of 2-Acrylamido-2-methyl-1-propanesulfonic Acid on the Enhanced Conductivity for Fuel Cell at Low Temperature

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 426
Author(s):  
Murli Manohar ◽  
Dukjoon Kim
Keyword(s):  
Thermal Stability ◽  
Weight Loss ◽  
Fuel Cell ◽  
Membrane Structure ◽  
Polymer Electrolyte Membranes ◽  
Aliphatic Chain ◽  
Electrolyte Membranes ◽  
Ft Ir ◽  
Enhanced Conductivity ◽  
Thermal Stability Of

This present work focused on the aromatic polymer (poly (1,4-phenylene ether-ether-sulfone); SPEES) interconnected/ cross-linked with the aliphatic monomer (2-acrylamido-2-methyl-1-propanesulfonic; AMPS) with the sulfonic group to enhance the conductivity and make it flexible with aliphatic chain of AMPS. Surprisingly, it produced higher conductivity than that of other reported work after the chemical stability was measured. It allows optimizing the synthesis of polymer electrolyte membranes with tailor-made combinations of conductivity and stability. Membrane structure is characterized by 1H NMR and FT-IR. Weight loss of the membrane in Fenton’s reagent is not too high during the oxidative stability test. The thermal stability of the membrane is characterized by TGA and its morphology by SEM and SAXS. The prepared membranes improved proton conductivity up to 0.125 Scm−1 which is much higher than that of Nafion N115 which is 0.059 Scm−1. Therefore, the SPEES-AM membranes are adequate for fuel cell at 50 °C with reduced relative humidity (RH).

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