Quaternary ammonium-functionalized hexyl bis(quaternary ammonium)-mediated partially crosslinked SEBSs as highly conductive and stable anion exchange membranes

Munsur, Abu Zafar Al; Hossain, Iqubal; Nam, Sang Yong; Chae, Ji Eon; Kim, Tae-Hyun

doi:10.1016/j.ijhydene.2020.04.063

Cited by 39 publications

(21 citation statements)

References 48 publications

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“…The results demonstrated that the crosslinked structure did not affect the microphase separation but reduced the ion aggregation size of AEMs. 56 This phenomenon was probably due to the restriction of polymer chains during the membrane casting and crosslinking processes, 41 and it resulted in a lower ionic conductivity of the crosslinked membrane than that of PVA-CoCp. Moreover, similar to the d values in previous study, 24,26 there was no long-range-ordered structure in as-prepared AEMs.…”

Section: Water Absorption and Ionicmentioning

confidence: 99%

Metallo-Polyelectrolyte-Based Robust Anion Exchange Membranes via Acetalation of a Commodity Polymer

et al. 2021

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Metallo-polyelectrolytes have been demonstrated to be promising candidates for anion exchange membranes (AEMs) due to their excellent alkaline stability. Here, cobaltoceniumcontaining metallo-polyelectrolyte-based AEMs with good chemical stability and dimensional stability were prepared through facile acetalation of a commodity polymer, poly(vinyl alcohol). The AEM crosslinked with 1 wt % glutaraldehyde (GA) exhibits a comparable hydroxide conductivity of 72 mS/cm at 80 °C and enhanced alkaline stability in 1 M NaOH at 80 °C (maintained 86.3% of initial hydroxide conductivity after 1000 h). The dimensional stability of these AEMs can be tuned through acetalation crosslinking with GA, and the swelling ratio of 1% GA was 17.8% and the gel fraction was 90.5%. The H 2 /O 2 single cell using 1% GA AEM (50 μm, Fumion ionomer) showed a maximum power density of 120 mW/cm 2 at 60 °C without backpressure. This work provides a facile method for the preparation of stable metallo-polyelectrolyte-based alkaline membrane fuel cells.

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Section: Water Absorption and Ionicmentioning

confidence: 99%

Metallo-Polyelectrolyte-Based Robust Anion Exchange Membranes via Acetalation of a Commodity Polymer

et al. 2021

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“…The results show that the mechanical properties and dimensional stability of membrane materials with IEC lower than 2 mmol g −1 are controlled within an acceptable range, which is due to the cross-linking structure of membranes. Moderate cross-linking can limit the movement of the chain segments and the swelling of the membrane [ 37 , 38 ]. The contact angle measurement shows that hydrophilicity could be improved by increasing the content of the hydrophilic sodium sulfonate group.…”

Section: Discussionmentioning

confidence: 99%

Preparation and Chemical Protective Clothing Application of PVDF Based Sodium Sulfonate Membrane

Zhao

Wang

et al. 2020

Membranes

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Chemical protective clothing (CPC) is major equipment to protect human skin from hazardous chemical warfare agents (CWAs), especially nerve agents and blister agents. CPC performance is mainly dominated by the chemical protective material, which needs to meet various requirements, such as mechanical robustness, protective properties, physiological comfort, cost-effectiveness, and dimensional stability. In this study, polyvinylidene fluoride (PVDF) based sodium sulfonate membranes with different ion exchange capacities (IECs) are prepared simply from low-cost materials. Their mechanical properties, contact angles, permeations, and selectivities have been tested and compared with each other. Results show that membranes with IEC in the range of 1.5–2 mmol g−1 have high selectivities of water vapor permeation over CWA simulant vapor permeation and good mechanical properties. Therefore, PVDF-based sodium sulfonate membranes are potential materials for CPC applications.

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“…Synthetic AEMs. A variety of synthetic polymers have been proposed for AEMs' processing by the paste method, 67 block polymerisation, 68 copolymerisation, 69 direct solution casting, 70 the sol-gel technique, 71 graing and plasma polymerisation 72,73 and the pore-lling method. 64,74 They include: polyphenylene oxide (PPO), poly(ether ether ketone) (PEKK), poly(ether ether ketone ketone) (PEEKK), ethylene tetrauoroethylene (ETFE), polyvinyl alcohol (PVA), polyethyleneimine (BPEI), polytetrauoroethylene (PTFE), polybenzimidazole (PBI), poly(olens), styrene, and many others.…”

Section: Anion Exchange Membranes (Aems)mentioning

confidence: 99%

Alkaline membrane fuel cells: anion exchange membranes and fuels

Hren

Božič²,

Fakin

et al. 2021

Sustainable Energy Fuels

175

103

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Quaternary ammonium-functionalized hexyl bis(quaternary ammonium)-mediated partially crosslinked SEBSs as highly conductive and stable anion exchange membranes

Cited by 39 publications

References 48 publications

Metallo-Polyelectrolyte-Based Robust Anion Exchange Membranes via Acetalation of a Commodity Polymer

Metallo-Polyelectrolyte-Based Robust Anion Exchange Membranes via Acetalation of a Commodity Polymer

Preparation and Chemical Protective Clothing Application of PVDF Based Sodium Sulfonate Membrane

Alkaline membrane fuel cells: anion exchange membranes and fuels

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