Proton conducting composite membranes from crosslinked poly(vinyl alcohol) and poly(styrene sulfonic acid)-functionalized silica nanoparticles

Kamjornsupamitr, Trin; Sangthumchai, Thanakorn; Youngme, Sujittra; Martwiset, Surangkhana

doi:10.1016/j.ijhydene.2018.04.198

Cited by 21 publications

(20 citation statements)

References 30 publications

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“…The fully bio-based materials exhibit promising properties such high thermal stability and excellent oxidative resistance of more than 90%, which is superior compared to other materials previously reported. 48,49 Previous literature has demonstrated limited focus on oxidative resistant properties of bio-based thermosets, this further highlights a distinct advantage of this study.…”

Section: Oxidative Stabilitymentioning

confidence: 93%

Development of hyperbranched crosslinkers from bio-derived platform molecules for the synthesis of epoxidised soybean oil based thermosets

2018

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Section: Oxidative Stabilitymentioning

confidence: 93%

Development of hyperbranched crosslinkers from bio-derived platform molecules for the synthesis of epoxidised soybean oil based thermosets

2018

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“…The broad bands at 2500-3500 cm -1 (characteristic of O-H stretching vibration) are observed due to hydrogen bonding network formation. The wagging vibration of C-H in 1,4-substituted benzene ring was also shown at 838 cm -1 [18]. Hence, the FTIR spectra verified that the copolymerization of AA, AN and NaSS was carried out successfully.…”

Section: Resultsmentioning

confidence: 52%

“…The oxidative stability is an important factor that determines the life time and long-term performance of proton conductive membranes. During the operation of PEMFCs, free oxidative radicals (•OH and •OOH) are generated as a result of H 2 O 2 decomposition, the by-product due to the incomplete reduction of oxygen [18,22]. These highly oxidative radicals attack polymer backbones and cause the membrane degradation.…”

Section: Resultsmentioning

confidence: 99%

Preparation of polyacrylate/silica membranes for fuel cell application by in situ UV polymerization

Zhyhailo¹,

Yevchuk²,

Yatsyshyn³

et al. 2020

chemija

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The development of proton conductive polyacrylate membranes based on acrylonitrile, sodium 4-vinylbenzenesulfonate, acrylic acid, ethylene glycol dimethacrylate and hybrid polyacrylate/silica membranes is reported in this article. Polyacrylate membranes were synthesized via UV-initiated copolymerization; for the synthesis of polyacrylate/silica membranes 3-methacryloxypropyl trimethoxysilane-based sol–gel system was introduced into the polymerizing mixture.

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“…The electrochemical impedance spectroscopy (EIS) is a versatile electrochemical technique used to evaluate the electrical response of the polymeric membranes (e.g., resistance of electron charge transfer, double layer capacitance, electrical resistance (impedance), conductivity) [ 14 , 38 ].…”

Section: Resultsmentioning

confidence: 99%

“…Proton conductivity (σ) of the polymeric membranes (without and with SiO 2 nanoparticles) was calculated by using the Equation (5) [ 14 , 38 ]:

where σ is the proton conductivity (S cm −1 ), l is the membrane thickness (cm), A is the area of the wet polymeric membrane sample (cm 2 ), and R is the measured membrane resistance obtained from the electrochemical impedance spectroscopy (EIS) data (S).…”

Section: Methodsmentioning

confidence: 99%

Study of Polyvinyl Alcohol-SiO2 Nanoparticles Polymeric Membrane in Wastewater Treatment Containing Zinc Ions

et al. 2021

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The main goal of the present paper was to synthesize the polyvinyl alcohol-SiO2 nanoparticles polymeric membrane by wet-phase inversion method. The efficiency of prepared membranes (without and with SiO2) was investigated using a versatile laboratory electrodialysis system filled with simulated wastewaters that contain zinc ions. All experiments were performed at following conditions: the applied voltage at electrodes of 5, 10 and 15 V, a concentration of zinc ions solution of 2 g L−1, time for each test of 1 h and at room temperature. The demineralization rate, extraction percentage of zinc ions, current efficiency and energy consumption were determined. The polymeric membranes were characterized by Fourier Transforms Infrared Spectroscopy-Attenuated Total Reflection (FTIR-ATR), Scanning Electron Microscopy (SEM) and Electrochemical Impedance Spectroscopy (EIS). The higher value of percentage removal of zinc ions (over 65%) was obtained for the polymeric membrane with SiO2 nanoparticles, at 15 V. The FTIR-ATR spectra show a characteristic peak located at ~1078 cm−1 assigned to the Si-O-Si asymmetrical stretching. SEM images of the polymeric membrane with SiO2 nanoparticles show that the nanoparticles and polymer matrix were well compatible. The impedance results indicated that the SiO2 nanoparticles induced the higher proton conductivity. The final polymeric membranes can be used for the removal of various metallic ions, dyes, organic or inorganic colloids, bacteria or other microorganisms from different natural waters and wastewaters.

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Proton conducting composite membranes from crosslinked poly(vinyl alcohol) and poly(styrene sulfonic acid)-functionalized silica nanoparticles

Cited by 21 publications

References 30 publications

Development of hyperbranched crosslinkers from bio-derived platform molecules for the synthesis of epoxidised soybean oil based thermosets

Development of hyperbranched crosslinkers from bio-derived platform molecules for the synthesis of epoxidised soybean oil based thermosets

Preparation of polyacrylate/silica membranes for fuel cell application by in situ UV polymerization

Study of Polyvinyl Alcohol-SiO2 Nanoparticles Polymeric Membrane in Wastewater Treatment Containing Zinc Ions

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