Anion exchange composite membranes composed of poly(phenylene oxide) containing quaternary ammonium and polyethylene support for alkaline anion exchange membrane fuel cell applications

Son, Tae Yang; Ko, Tae Ho; Vijayakumar, Vijayalekshmi; Kım, Kihyun; Nam, Sang Yong

doi:10.1016/j.ssi.2019.115153

Cited by 25 publications

(20 citation statements)

References 27 publications

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“…It was confirmed that the elongation gradually decreased as the degree of crosslinking increased as reported by other studies [38][39][40][41]. Based on these results, it was confirmed that the crosslinked pore-filling membrane was a good option [4]. Table 2 shows the ion exchange capacities (IEC) of the XAc-PPO70_100 and the prepared crosslinked pore-filling membranes.…”

Section: Mechanical Propertiessupporting

confidence: 82%

“…As climate change accelerates, the development of green energies has attracted significant attention [ 1 , 2 ]. Among them, fuel cells can convert chemical energy into electrical energy and have the advantages of high efficiency and eco-friendly [ 3 , 4 , 5 , 6 ]. There are several types of fuel cell systems, according to the kinds of electrolyte.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, improvement of conductivity and stability through various techniques is important in the AEMFC [ 4 , 12 , 13 , 14 ]. First, many polymers are being studied for use in anion exchange polymers.…”

Section: Introductionmentioning

confidence: 99%

“…The anion exchange polymers with long side chain came up as a remarkable revolution to improve the water uptake because it can trap water between the polymer chains mentioned above [ 33 ]. Second, the pore-filled membrane is good approach that can improve the mechanical stability by using the physical property of the porous support [ 4 ]. Third, recently, for the chemical stability of the anion exchange membrane, the hydrophobic and hydrophilic parts are phase separated.…”

Section: Introductionmentioning

confidence: 99%

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Crosslinked Pore-Filling Anion Exchange Membrane Using the Cylindrical Centrifugal Force for Anion Exchange Membrane Fuel Cell System

2020

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In this study, novel crosslinked pore-filling membranes were fabricated by using a centrifugal force from the cylindrical centrifugal machine. For preparing these crosslinked pore-filling membranes, the poly(phenylene oxide) containing long side chains to improve the water management (hydrophilic), porous polyethylene support (hydrophobic) and crosslinker based on the diamine were used. The resulting membranes showed a uniform thickness, flexible and transparent because it is well filled. Among them, PF-XAc-PPO70_25 showed good mechanical properties (56.1 MPa of tensile strength and 781.0 MPa of Young’s modulus) and dimensional stability due to the support. In addition, it has a high hydroxide conductivity (87.1 mS/cm at 80 °C) and low area specific resistance (0.040 Ω·cm2), at the same time showing stable alkaline stability. These data outperformed the commercial FAA-3-50 membrane sold by Fumatech in Germany. Based on the optimized properties, membrane electrode assembly using XAc-PPO70_25 revealed excellent cell performance (maximum power density: 239 mW/cm2 at 0.49 V) than those of commercial FAA-3-50 Fumatech anion exchange membrane (maximum power density: 212 mW/cm2 at 0.54 V) under the operating condition of 60 °C and 100% RH as well. It was expected that PF-XAc-PPO70_25 could be an excellent candidate based on the results superior to those of commercial membranes in these essential characteristics of fuel cells.

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Section: Mechanical Propertiessupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Crosslinked Pore-Filling Anion Exchange Membrane Using the Cylindrical Centrifugal Force for Anion Exchange Membrane Fuel Cell System

2020

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“…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. Such a material is then functionalised by various reagents to obtain a positively charged AEM, carrying functionalities presented on Fig.…”

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

209

103

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Preparation of highly selective PSf/ZnO/PEG400 tight ultrafiltration membrane for dyes removal

Aryanti

Nugroho

Widiasa

et al. 2022

J of Applied Polymer Sci

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Tight ultrafiltration (UF) has increasingly been developed to overcome the low selectivity of conventional UF membranes towards soluble contaminants. In this work, a tight structure of polysulfone-based (PSf) UF membrane was prepared by blending PSf with polyethylene glycol (PEG400), ZnO nanoparticle (ZnO-Np), and acetone (Ac) in dimethylacetamide (DMAc). The influences of Ac/DMAc ratio (1: 15 to 1:25) and PEG400 concentration (0-25 wt%) on the binodal curve of the polymer solution, characteristics, and performances of the UF membrane were studied. The membrane performances were investigated by observing the permeate flux and dye rejection during real textile wastewater treatment. The binodal curves are close to the polymer line, which means that rapid demixing occurred after the casted solution was immersed in the coagulation bath. Based on FTIR analysis, PEG400 and ZnO-Np were partially entrapped in the UF membrane structure. Over 90% of color removal at a permeate flux of 72 L.m À2 .h À1 could be achieved when the Ac/DMAC ratio was 1:12. The tight-UF membrane removed TDS and Naphthol AS by 74.5% and 92.8%, respectively. Since the experimental result showed a high contaminants removal, the tight-UF could be used as clean technology to produce clean water for water reuse purposes at low energy requirements.

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Anion exchange composite membranes composed of poly(phenylene oxide) containing quaternary ammonium and polyethylene support for alkaline anion exchange membrane fuel cell applications

Cited by 25 publications

References 27 publications

Crosslinked Pore-Filling Anion Exchange Membrane Using the Cylindrical Centrifugal Force for Anion Exchange Membrane Fuel Cell System

Crosslinked Pore-Filling Anion Exchange Membrane Using the Cylindrical Centrifugal Force for Anion Exchange Membrane Fuel Cell System

Alkaline membrane fuel cells: anion exchange membranes and fuels

Preparation of highly selective PSf/ZnO/PEG400 tight ultrafiltration membrane for dyes removal

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