Novel hydroxide conducting sulfonium-based anion exchange membrane for alkaline fuel cell applications

Hossain, Md. Ali; Jang, Hohyoun; Sutradhar, Sabuj Chandra; Ha, Jaeseong; Yoo, Jiho; Lee, Chaekyun; Lee, Sungkwun; Kim, Whangi

doi:10.1016/j.ijhydene.2016.01.051

Cited by 46 publications

(29 citation statements)

References 33 publications

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“…Several polymer backbone and head group have been used to achieve an ideal AEM for AAEMFCs. Head‐group available in the literature for AEM include trimethylammonium, phosphonium, guanidinium, imidazolium or benzimidazolium, and sulfonium, which acts as hydroxyl carrier and also improves the chemical stability of membranes. Till date, the quaternary ammonium (QA) head groups have been the most extensively studied anion head group in AEMs due to the ease of preparation and low cost .…”

Section: Introductionmentioning

confidence: 99%

Quaternized poly(2.6 dimethyl‐1.4 phenylene oxide)/polysulfone blend composite membrane doped with ZnO‐nanoparticles for alkaline fuel cells

Msomi

Nonjola

Ndungu

et al. 2017

J of Applied Polymer Sci

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A series of quaternized poly(2.6 dimethyl‐1.4 phenylene oxide)/polysulfone (QPPO/PSF) blend anion exchange membrane (AEM) were successfully fabricated and characterized for alkaline fuel cell application. Zinc oxide (ZnO) nanoparticles were introduced in the polymer matrix to enhance the intrinsic properties of the AEM. To confirm successful fabrication, Fourier‐transform infrared spectroscopy and nuclear magnetic resonance (1H‐NMR) were used. The membrane properties were enhanced by the addition of ZnO nanoparticles. The addition of ZnO nanoparticles resulted to a higher ion exchange capacity (IEC) of 3.72 mmol g−1, increase of ion conductivity (IC) up to 52.34 mS cm−1 at 80 °C, enhancement of water uptake, and reduced methanol permeability. The QPPO/PSF/2% ZnO composite retained over 80% of its initial IC at room temperature and also retained over 50% of its initial IC at 80 °C when evaluated for alkaline stability. The maximum power output reached for the membrane electrode assembly constructed with QPPO/PSF/2%ZnO was 69 mW cm−2 at room temperature, which is about three times more than the parent QPPO membrane. The above results indicate that QPPO/PSF/ZnO is a good candidate as an AEM for fuel cell application. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45959.

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Section: Introductionmentioning

confidence: 99%

Quaternized poly(2.6 dimethyl‐1.4 phenylene oxide)/polysulfone blend composite membrane doped with ZnO‐nanoparticles for alkaline fuel cells

Msomi

Nonjola

Ndungu

et al. 2017

J of Applied Polymer Sci

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“…According to the conduction mechanism of OH − in the membrane, the structure of the anion membrane plays an important role in the conduction process of OH −. 7–9 Researchers improve the ionic conductivity of anion exchange membrane by adjusting the design of polymer molecular chains, 10–12 using functional groups of different structures 13–16 or special preparation methods such as composition, radiation‐grafted and electrospinning 17–21 . By tuning the microstructure of AEMs, Ren and Pan et al 22,23 prepared the AEMs with hydroxyl ion conductivity that can be at the same level of the proton conductivity at above 60°C.…”

Section: Introductionmentioning

confidence: 99%

Quaternized poly (2,6‐dimethyl‐1,4‐phenylene oxide) crosslinked by tertiary amine and siloxane for anion exchange membranes

Ding

Zhou

Cheng

et al. 2020

J of Applied Polymer Sci

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A series of tertiary amine and siloxane crosslinked composite anion exchange membranes were prepared by incorporating 2‐(3,4‐epoxycyclohexyl) ethyltrimethoxysilane (EHTMS) and N,N,N′,N′‐Tetramethyl‐1,6‐hexanediamine (TMHDA) into N‐Methyldiethanolamine (MDEA)‐functionalized poly (2,6‐dimethyl‐1,4‐phenylene oxide) (PPO) backbone via sol‐gel process. The resultant membranes named as AEM‐X (X = 1, 2, 3, 4), which own a three‐dimensional (3D) cross‐linking structure, exhibit superior swelling resistance, mechanical properties, even the thermal stability is up to 220°C. Compared with AEM‐1 (contains no crosslinker), the swelling ratio of AEM‐2 obviously decreases by 10.2% at 80°C, while the OH− conductivity of AEM‐2 has a merely 1.9% decline (20.6 mS cm−1) at 80°C and can maintain 67% of its initial value in a 2 M aqueous NaOH at 80°C for 240 h. The simultaneous introduction of inorganic siloxane and organic linear crosslinker provides a new idea for the preparation of anion exchange membranes with largely improvement in dimensional stability and alkali resistance while the ionic conductivity is kept at comparatively high level.

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“…A number of functional groups, based on quaternary ammonium or tertiary diamines , , benzimidazolium , , guadinium , , pyridinium , , or non‐nitrogen groups like phosphonium , , sulfonium , , or metal cation functional groups , , were tested. However, the chemical stability of all of them is primarily limited by concentration of the alkaline liquid electrolyte and operational temperature.…”

Section: Introductionmentioning

confidence: 99%

Design of a Zero‐Gap Laboratory‐Scale Polymer Electrolyte Membrane Alkaline Water Electrolysis Stack

Hnát

Kodým

Denk

et al. 2019

Chemie Ingenieur Technik

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The development of a zero-gap alkaline water electrolysis stack based on a heterogeneous anion-selective polymer electrolyte membrane is reported. A bipolar electrode arrangement was selected as the most appropriate one. The design was targeted to verify the suitability of the membrane electrode assembly design and the functionality of the gas separator system developed together with the purity of the gases produced. The influence of various operational regimes on the purity of the gases was investigated. Last, but not least, a validation of the mathematical model to be used for scale-up of the cell, foreseen for the next step of the project, was performed.

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Novel hydroxide conducting sulfonium-based anion exchange membrane for alkaline fuel cell applications

Cited by 46 publications

References 33 publications

Quaternized poly(2.6 dimethyl‐1.4 phenylene oxide)/polysulfone blend composite membrane doped with ZnO‐nanoparticles for alkaline fuel cells

Quaternized poly(2.6 dimethyl‐1.4 phenylene oxide)/polysulfone blend composite membrane doped with ZnO‐nanoparticles for alkaline fuel cells

Quaternized poly (2,6‐dimethyl‐1,4‐phenylene oxide) crosslinked by tertiary amine and siloxane for anion exchange membranes

Design of a Zero‐Gap Laboratory‐Scale Polymer Electrolyte Membrane Alkaline Water Electrolysis Stack

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