Water uptake, ionic conductivity and swelling properties of anion-exchange membrane

2013 ◽  
Vol 243 ◽  
pp. 773-778 ◽  
Author(s):  
Qiongjuan Duan ◽  
Shanhai Ge ◽  
Chao-Yang Wang
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Water Uptake ◽  
Anion Exchange Membrane ◽  
Swelling Properties ◽  
Exchange Membrane

scholarly journals Anion Exchange Membrane Based on Sulfonated Poly (Styrene-ethylene-butylene-styrene) Copolymers

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1669
Author(s):  
Hye-Seon Park ◽  
Chang-Kook Hong
Keyword(s):  
Ionic Conductivity ◽  
Anion Exchange ◽  
Water Uptake ◽  
Chemical Properties ◽  
Electrochemical Analysis ◽  
Anion Exchange Membrane ◽  
Sulfonate Group ◽  
Ionic Exchange ◽  
Exchange Membrane ◽  
Sulfonated Poly

Sulfonated poly(styrene-ethylene-butylene-styrene) copolymer (S-SEBS) was prepared as an anion exchange membrane using the casting method. The prepared S-SEBS was further modified with sulfonic acid groups and grafted with maleic anhydride (MA) to improve the ionic conducting properties. The prepared MA-grafted S-SEBS (S-SEBS-g-MA) membranes were characterized by Fourier transform infrared red (FT-IR) spectroscopy and dynamic modulus analysis (DMA). The morphology of the S-SEBS and S-SEBS-g-MA was investigated using atomic force microscopy (AFM) analysis. The modified membranes formed ionic channels by means of association with the sulfonate group and carboxyl group in the SEBS. The electrochemical properties of the modified SEBS membranes, such as water uptake capability, impedance spectroscopy, ionic conductivity, and ionic exchange capacity (IEC), were also measured. The electrochemical analysis revealed that the S-SEBS-g-MA anion exchange membrane showed ionic conductivity of 0.25 S/cm at 100% relative humidity, with 72.5% water uptake capacity. Interestingly, we did not observe any changes in their mechanical and chemical properties, which revealed the robustness of the modified SEBS membrane.

Ionomer Optimization for Water Uptake and Swelling in Anion Exchange Membrane Electrolyzer: Hydrogen Evolution Electrode

2021 ◽  
Vol 168 (2) ◽  
pp. 024503
Author(s):  
Garrett Huang ◽  
Mrinmay Mandal ◽  
Noor Ul Hassan ◽  
Katelyn Groenhout ◽  
Alexandra Dobbs ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Anion Exchange ◽  
Water Uptake ◽  
Anion Exchange Membrane ◽  
Exchange Membrane

Ionomer Optimization for Water Uptake and Swelling in Anion Exchange Membrane Electrolyzer: Oxygen Evolution Electrode

2020 ◽  
Vol 167 (16) ◽  
pp. 164514
Author(s):  
Garrett Huang ◽  
Mrinmay Mandal ◽  
Noor Ul Hassan ◽  
Katelyn Groenhout ◽  
Alexandra Dobbs ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Oxygen Evolution ◽  
Water Uptake ◽  
Anion Exchange Membrane ◽  
Exchange Membrane

Using Ion Exchange Capacity to Control Water Uptake in Electrodes of Low-Temperature Anion Exchange Membrane Electrolyzers

2020 ◽  
Vol MA2020-02 (38) ◽  
pp. 2442-2442
Author(s):  
Garrett Huang ◽  
Mrinmay Mandal ◽  
Alexandra Dobbs ◽  
Katelyn Groenhout ◽  
Paul A Kohl
Keyword(s):  
Low Temperature ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Water Uptake ◽  
Exchange Capacity ◽  
Anion Exchange Membrane ◽  
Ion Exchange Capacity ◽  
Exchange Membrane ◽  
Control Water

scholarly journals Interplay between water uptake, ion interactions, and conductivity in an e-beam grafted poly(ethylene-co-tetrafluoroethylene) anion exchange membrane

2015 ◽  
Vol 17 (6) ◽  
pp. 4367-4378 ◽  
Author(s):  
Tara P. Pandey ◽  
Ashley M. Maes ◽  
Himanshu N. Sarode ◽  
Bethanne D. Peters ◽  
Sandra Lavina ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Water Uptake ◽  
Anion Exchange Membrane ◽  
Water Regimes ◽  
Ion Interactions ◽  
Poly Ethylene ◽  
Exchange Membrane ◽  
Very High

Very high hydroxide conductivity in a robust anion exchange membrane due to very low tortuosity, with two distinct water regimes.

scholarly journals Preparation and Characterization of Alkaline Anion Exchange Membrane for Fuel Cells Application

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Ganmin Zeng ◽  
Jing Han ◽  
Beibei Dai ◽  
Xiaohui Liu ◽  
Jinkun Li ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Water Uptake ◽  
Composite Membrane ◽  
Composite Membranes ◽  
Exchange Capacity ◽  
Anion Exchange Membrane ◽  
Ion Exchange Capacity ◽  
Exchange Membrane

Alkaline anion exchange membrane (AAEM) plays an important role in the development of fuel cell. In this research, the electrostatic spinning technology was used to prepare AAEM. We use BC/TiO2 membrane as substrate by introduced quaternary ammonium groups to prepare BC/TiO2/CHPTAC (3-chloro-2-hydroxypropyl trimethyl ammonium chloride) composite membranes. The as-prepared composite membrane was characterized by XRD, SEM, XPS, and TG methods. It was found that BC/TiO2/CHPTAC (0.05 g) membrane exhibited high thermal stability and better comprehensive performance. The degree of substitution (DS), water uptake, and ion-exchange capacity (IEC) of BC/TiO2/CHPTAC membranes were investigated. The results showed that the DS, water uptake, and IEC of BC/TiO2/CHPTAC membrane were 1.16, 140%, and 1 mmol·g−1, respectively. We believe this composite membrane with excellent performances can promise many applications in fuel cells.

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