Polyelectrolyte based on tetra-sulfonated poly(arylene ether)s for direct methanol fuel cell

Pang, Jinhui; Shen, Kunzhi; Ren, Dianfu; Feng, Sinan; Jiang, Zhenhua

doi:10.1016/j.jpowsour.2012.11.005

Cited by 15 publications

(12 citation statements)

References 30 publications

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“…Densely sulfonated fluorinated poly(arylene ether ketone) copolymers (SPAEK-xx, where xx = 15, 20, 25, 30, and 35) was prepared by Pang et al [172] and evaluated for proton conductivity. The T g of the copolymers was in the range 193-231 °C and the T d,5% was in the range 364-390 °C, with a decreasing trend with an increase in the DS.…”

Section: Densely Sulfonated Fluorinated Paesmentioning

confidence: 99%

Fluorinated Poly(Arylene Ether)s

Ghosh

Mukherjee

Ghosh

et al. 2015

Handbook of Specialty Fluorinated Polymers

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Section: Densely Sulfonated Fluorinated Paesmentioning

confidence: 99%

Fluorinated Poly(Arylene Ether)s

Ghosh

Mukherjee

Ghosh

et al. 2015

Handbook of Specialty Fluorinated Polymers

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“…Generally, the proton conductivity value is an important parameter for the membrane in fuel cells application, and it should be greater than 10 −2 S cm −1 . According to Figure A, the addition of s‐Fu rendered the BSPAEKS composite higher proton conductivity (0.256 to 0.332 S cm −1 at 80°C) in comparison with the pristine membrane (0.241 S cm −1 at 80°C), which is ascribed to the improved water sorption and ion exchanging nature of the composite membrane.…”

Section: Resultsmentioning

confidence: 99%

Highly branched poly(arylene ether)/surface functionalized fullerene‐based composite membrane electrolyte for DMFC applications

et al. 2019

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Summary Sulfonated branched polymer membranes have been gaining immense attention as the separator in energy‐related applications especially in fuel cells and flow batteries. Utilization of this branched polymer membranes in direct methanol fuel cell (DMFC) is limited because of large free volume and high methanol permeation. In the present work, sulfonated fullerene is used to improve the methanol barrier property of the highly branched sulfonated poly(ether ether ketone sulfone)s membrane without sacrificing its high proton conductivity. The existence of sulfonated fullerene with larger size and the usage of small quantity in the branched polymer matrix effectively prevent the methanol transportation channel across the membrane. The composite membrane with an optimized loading of sulfonated fullerene displays the highest proton conductivity of 0.332 S cm−1 at 80°C. Radical scavenging property of the fullerene improves the oxidative stability of the composite membrane. Composite membrane exhibits the peak power density of 74.38 mW cm−2 at 60°C, which is 30% larger than the commercial Nafion 212 membrane (51.78 mW cm−2) at the same condition. From these results, it clearly depicts that sulfonated fullerene‐incorporated branched polymer electrolyte membrane emerges as a promising candidate for DMFC applications.

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“…N ‐methyl‐2‐pyrrolidone (NMP), JiangSu NanJing JinLong Chemical Industry Company. The disodium 3,3′‐disulfonate‐4, 4′‐dichlorodiphenylsulfone (SDCDPS) , 1,1‐bis(4‐hydroxyphenyl)−1‐phenylethane (PhBPA) monomer , and 4,4′‐thiobenzoic acid (TDA) monomer used in the investigation was synthesized according to the procedure described by previous literature.…”

Section: Methodsmentioning

confidence: 99%

Pendant crosslinked poly(aryl ether sulfone) copolymers sulfonated on backbone for proton exchange membranes

et al. 2013

Polymer Engineering & Sci

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A series of sulfonated poly(aryl ether sulfone) copolymers containing phenyl pendant groups with sulfonic acid groups on the backbone were synthesized through condensation polymerization. The degree of sulfonation (DS) of the copolymers was controlled by changing the feed ratios of sulfonated to unsulfonated monomers. Post‐crosslink reactions are carried out with 4,4′‐thiodibenzoic acid (TDA) as a crosslinker and the carboxylic acid groups in TDA can undergo Friedel–Craft acylation with the phenyls pendent rings in sulfonated poly(arylene ether sulfone)s copolymers to prepare polymer electrolyte membranes for fuel cell applications. The chemical structures of crosslinked and uncrosslinked sulfonated poly(arylene ether sulfone)s copolymers (SPSFs and CSPSFs) were characterized by FTIR, 1H NMR spectra. The thermal and mechanical properties of the membranes were characterized by thermogravimetric analysis and stress–strain test. The dependence of water uptake, methanol permeability, proton conductivity, and selectivity on DS was studied. Transmission electron microscopic observations revealed that SPSFs and CSPSFs membranes form well‐defined microphase separated structures. POLYM. ENG. SCI., 54:2013–2022, 2014. © 2013 Society of Plastics Engineers

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Polyelectrolyte based on tetra-sulfonated poly(arylene ether)s for direct methanol fuel cell

Cited by 15 publications

References 30 publications

Fluorinated Poly(Arylene Ether)s

Fluorinated Poly(Arylene Ether)s

Highly branched poly(arylene ether)/surface functionalized fullerene‐based composite membrane electrolyte for DMFC applications

Pendant crosslinked poly(aryl ether sulfone) copolymers sulfonated on backbone for proton exchange membranes

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