Four-polymer blend proton exchange membranes derived from sulfonated poly(aryl ether sulfone)s with various sulfonation degrees for application in fuel cells

Haragirimana, Alphonse; Ingabire, Providence Buregeya; Zhu, Yuxin; Lu, Yao; Li, Na; Hu, Zhaoxia; Chen, Shouwen

doi:10.1016/j.memsci.2019.04.014

Cited by 50 publications

(28 citation statements)

References 35 publications

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“…Accordingly, the development of low-cost alternative materials with superior properties remains an attractive and promising demand. To solve this concern, researchers have focused on new methods such as blending, cross-linking, and nanocomposites based on polymers such as sulfonated poly(ether sulfone) (SPES) 7 , sulfonated poly (phthalazinone ether ketone) (SPPEK) 8 , sulfonated poly(ether ether ketone) (SPEEK) 9 , poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) 10 , and poly polybenzimidazole (PBI) 11 .…”

Section: Introductionmentioning

confidence: 99%

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Salarizadeh

Javanbakht

Askari

et al. 2021

Sci Rep

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In this study, new nanocomposite membranes from sulfonated poly (ether ether ketone) (SPEEK) and proton-conducting Fe2TiO5 nanoparticles are prepared by the solution casting method. Sulfonated core–shell Fe2TiO5 nanoparticles are synthesized by redox polymerization. Therefore, 4-Vinyl benzene sulfonate (VBS) and 2-acrylamide-2-methyl-1-propane sulfonic acid (AMPS) are grafted on the surface of nanoparticles through radical polymerization. The different amounts of hybrid nanoparticles (PAMPS@Fe2TiO5 and PVBS@Fe2TiO5) are incorporated into the SPEEK matrix. The results show higher proton conductivity for all prepared nanocomposites than that of the SPEEK membrane. Embedding the sulfonated Fe2TiO5 nanoparticles into the SPEEK membrane improves proton conductivity by creating the new proton conducting sites. Besides, the nanocomposite membranes showed improved mechanical and dimensional stability in comparison with that of the SPEEK membrane. Also, the membranes including 2 wt% of PAMPS@Fe2TiO5 and PVBS@Fe2TiO5 nanoparticles indicate the maximum power density of 247 mW cm−2 and 226 mW cm−2 at 80 °C, respectively, which is higher than that of for the pristine membrane. Our prepared membranes have the potential for application in polymer electrolyte fuel cells.

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Section: Introductionmentioning

confidence: 99%

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Salarizadeh

Javanbakht

Askari

et al. 2021

Sci Rep

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“…30 These linkages between organic-inorganic moieties affect the properties of the composites film. 45…”

Section: Surface Morphology Analysis By Semmentioning

confidence: 99%

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

Ali

Said

et al. 2021

J of Applied Polymer Sci

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Herein, coatable sulfonated polyimide (SPI) and clay-reinforced SPI membranes SPI-clay 3%, SPI-clay 5%, and SPI-clay 7% were successfully fabricated by one-step high temperature via direct imidization method. The membranes were cast as a coatable thin film using a solution casting method and grafted vermiculite clay nanoparticle were incorporated into the neat SPI as reinforcement by the sonication method. Three different formulated nanocomposite membranes were investigated using different characterization techniques such as Fourier transform infrared spectroscopy as peaks at 1166 and 1227 cm À1 confirmed successful sulfonation. In Proton ( 1 H) NMR synthesis of SPI confirmed as aromatic proton at 7.3-8.8 ppm depicts successful sulfonation and X-ray diffraction results confirmed the crystalline structure of clay, as its content increased (7%) clear diffraction peak arises at 6 and 25 . Scanning electron microscopy (SEM) provides information about surface morphology of clay reinforced SPI membranes, and SEM micrographs shown uniform dispersion of clay nanofillers and developed easy transfer of electron. Thermogravimetric analysis was performed to investigate the thermal stability of synthesized films, results of thermographs shown degradation in the range of 510-600 C. Different physicochemical parameters employed and their results show the effectiveness of synthesized clay reinforced SPI membranes. Water uptake (WU%) about 0.96%, hydrolytic about 98 h and oxidative stability up to 80 C, ions exchange capacity about 3.16 mmol/g for synthesized clay reinforced SPI membranes. Measurement regarding Dimensional changes was also investigated and dimensional changes (1.557 Δt/Δl). All these results reveal that the clay-reinforced coatable SPI membranes are a promising material for polymer electrolyte membranes to be used in fuel cell energy applications.

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“…4 In the past few decades, countless researchers have been developing low-cost and high-performance PEMs. Their works mainly includes some sulfonated aromatic polymers, such as sulfonated poly(aryl ether ketone), 5 –7 sulfonated poly(aryl ether sulfone), 8 –13 sulfonated polyimide 14 –17 and sulfonated polybenzimidazole. 18 –22 Most of these sulfonated polymers have proton conductivity comparable to Nafion membrane only at high degree of sulfonation (DS).…”

Section: Introductionmentioning

confidence: 99%

The preparation of novel sulfonated poly(aryl ether ketone sulfone)/TiO₂ composite membranes with low methanol permeability for direct methanol fuel cells

Yuan

Wang

2020

High Performance Polymers

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A sulfonated poly(aryl ether ketone sulfone) (SPAEKS) with locally dense sulfonic acid groups is synthesized and different amounts of TiO2 is doped into SPAEKS matrix to prepare composite membranes (SPAEKS/TiO2-x). SEM shows that TiO2 in the composite membranes has good dispersibility when TiO2 content is not higher than 3%. The composite membranes show good mechanical properties, dimensional stability and oxidative stability. The proton conductivity of composite membranes is near to that of Nafion 117 membrane and methanol permeability of composite membranes is much lower than that of Nafion 117 membrane. Therefore, the proton selectivity of composite membranes is higher than that of Nafion 117 membrane. In particular, proton selectivity of SPAEKS/TiO2-3% (12.8 × 104 S s cm−3) is four times higher than that of Nafion 117 membrane (3.2 × 104 S s cm−3).

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Four-polymer blend proton exchange membranes derived from sulfonated poly(aryl ether sulfone)s with various sulfonation degrees for application in fuel cells

Cited by 50 publications

References 35 publications

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

The preparation of novel sulfonated poly(aryl ether ketone sulfone)/TiO₂ composite membranes with low methanol permeability for direct methanol fuel cells

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Four-polymer blend proton exchange membranes derived from sulfonated poly(aryl ether sulfone)s with various sulfonation degrees for application in fuel cells

Cited by 50 publications

References 35 publications

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

The preparation of novel sulfonated poly(aryl ether ketone sulfone)/TiO2 composite membranes with low methanol permeability for direct methanol fuel cells

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The preparation of novel sulfonated poly(aryl ether ketone sulfone)/TiO₂ composite membranes with low methanol permeability for direct methanol fuel cells