Effects of anion substitution on hydration, ionic conductivity and mechanical properties of anion-exchange membranes

2016 ◽  
Vol 40 (4) ◽  
pp. 3671-3676 ◽  
Author(s):  
L. Pasquini ◽  
M. L. Di Vona ◽  
P. Knauth
Keyword(s):  
Mechanical Properties ◽  
Ionic Conductivity ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Anion Substitution

Ionic conductivity and the mechanical properties of ionomers with various anions.

Crosslinked metallo-polyelectrolytes with enhanced flexibility and dimensional stability for anion-exchange membranes

2020 ◽  
Vol 11 (28) ◽  
pp. 4542-4546 ◽  
Author(s):  
Tianyu Zhu ◽  
Chuanbing Tang
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Dimensional Stability ◽  
Anion Exchange Membranes

We report a class of crosslinked metallo-polyelectrolytes as anion exchange membranes with exceptional mechanical flexibility, dimensional stability and ionic conductivity.

Bis-imidazolium based poly(phenylene oxide) anion exchange membranes for fuel cells: the effect of cross-linking

2019 ◽  
Vol 7 (21) ◽  
pp. 13275-13283 ◽  
Author(s):  
Bencai Lin ◽  
Fei Xu ◽  
Fuqiang Chu ◽  
Yurong Ren ◽  
Jianning Ding ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Anion Exchange ◽  
Oxidation Stability ◽  
Cross Linking ◽  
Anion Exchange Membranes ◽  
Alkaline Stability ◽  
Phenylene Oxide

Cross-linked membranes showed vastly improved alkaline stability, oxidation stability and mechanical properties compared with uncross-linked membranes due to the effective cross-linked structure.

scholarly journals Preparation and Characterization of PVA/PDDA/Nano-Zirconia Composite Anion Exchange Membranes for Fuel Cells

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1399 ◽  
Author(s):  
Asep Muhamad Samsudin ◽  
Viktor Hacker
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Anion Exchange ◽  
Testing Machine ◽  
Conductivity Measurement ◽  
Poly Vinyl Alcohol ◽  
Anion Exchange Membranes ◽  
Potential Candidate ◽  
Casting Technique ◽  
Chemical Structures

Anion exchange membranes (AEMs) contribute significantly to enhance the performance and efficiency of alkaline polymer electrolyte fuel cells (APEFCs). A sequence of composite anion exchange membranes (AEMs) consisting of poly(vinyl alcohol) (PVA), poly(diallyldimethylammonium chloride) (PDDA), and nano-zirconia (NZ) has been prepared by a solution casting technique. The effect of zirconia mass ratio on attribute and performance of composite AEMs was investigated. The chemical structures, morphology, thermal, and mechanical properties of AEMs were characterized by FTIR, SEM, thermogravimetric analysis, and universal testing machine, respectively. The performance of composite AEMs was verified using water uptake, swelling degree, ion-exchange capacity, and OH− conductivity measurement. The nano-zirconia was homogeneously dispersed in the PVA/PDDA AEMs matrix. The mechanical properties of the composite AEMs were considerably enhanced with the addition of NZ. Through the introduction of 1.5 wt.% NZ, PVA/PDDA/NZ composite AEMs acquired the highest hydroxide conductivity of 31.57 mS·cm−1 at ambient condition. This study demonstrates that the PVA/PDDA/NZ AEMs are a potential candidate for APEFCs application.

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