Effect of functionalized montmorillonite addition on the thermal properties and ionic conductivity of PVDF–PEG polymer electrolyte

Wang, Yun‐Pu; Gao, Xiang‐Hu; Wang, Rong‐Min; Liu, Han-Gong; Yang, Chao

doi:10.1016/j.reactfunctpolym.2008.04.002

Cited by 41 publications

(9 citation statements)

References 32 publications

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“…e peak at 1570 cm −1 is attributed to the C�C stretching vibration (imidazolium ring). e peak at 1169 cm −1 is induced by the C-N stretching vibration (imidazolium ring), and the peaks at 1049 and 525 cm −1 correspond to the asymmetric vibration of B-F [56][57][58][59]. e results confirm that EMImBF 4 was introduced into the GES nanofibers.…”

Section: Resultsmentioning

confidence: 70%

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor

Kotatha

Hirata

Ogino

et al. 2019

Journal of Nanotechnology

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A novel nanofibrous gel electrolyte was prepared via gelatin electrospinning for use as a nonaqueous electrolyte in electric double-layer capacitors (EDLCs). An electrospinning technique with a 25 wt% gelatin solution was applied to produce gelatin electrospun (GES) nanofiber electrolytes. Structural analysis of the GES products showed a clearly nanofibrous structure with fiber diameters in the 306.2–428.4 nm range and exhibiting high thermal stability, high tensile strength, and a stable form of nanofibrous structure after immersion in 1-ethyl-3-methylimidazolium tetrafluoroborate (EMImBF4). After testing over a range of spinning times, GES electrolytes that were produced at 25 min (GES-25) had a suitable thickness for the assembly of EDLC with the optimized tensile properties and were used to fabricate EDLC test cells with EMImBF4. These test cells were compared to those with pure EMImBF4 and a separator as an electrolyte. The electrochemical properties of the test cells were characterized by charge-discharge testing, discharge capacitance, and alternative current (AC) impedance measurements. AC impedance measurements showed that the test cell with the GES-25/EMImBF4 gel electrolyte showed slightly poorer contact with the electrode when compared to that with pure EMImBF4, whereas exhibited comparable IR drop and discharge capacitance (calculated capacitance retention was 56.6%). The results demonstrated that this novel gel electrolyte can be used as a nonaqueous electrolyte in order to improve the safety in EDLCs.

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Section: Resultsmentioning

confidence: 70%

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor

Kotatha

Hirata

Ogino

et al. 2019

Journal of Nanotechnology

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“…Due to the presence of these phases, PVDF is used to enhance and develop the electronic devices and sensors applications [5] [6]. Different pairs of polymer blends between PVDF and other polymers are examined by several authors, like PVDF/polyvinylpyrrolidone (PVP) [7] [8], PVDF/polyethylene glycol (PEG) [9] [10], PVDF/poly vinyl acetate [11], PVDF/polymethyl methacrylate (PMMA) [12] [13]. As an example of those blends, PMMA is considered one of the most interesting polymers because of its good compatibility with PVDF.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Spectroscopic, Optical and Magnetic Behaviour of PVDF/PMMA Blend Embedded by Magnetite (Fe<sub>3</sub>O<sub>4</sub>) Nanoparticles

Gaabour¹

2020

OPJ

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In the present work, magnetite (Fe 3 O 4) nanoparticles have been prepared by a simple chemical method. Polymer nanocomposites based on the blend between poly vinylamine fluoride (PVDF) and (methyl methacrylate) (PMMA) doped with different concentrations of Fe 3 O 4 nanoparticles have been prepared. The structural, optical, and magnetization properties of the nanocomposite samples were studied using suitable techniques. The X-ray study reflected that the cubic spinal structure of pure Fe 3 O 4 crystal. No small peaks or ripples were found in the X-ray spectra, conforming to good dispersion of Fe 3 O 4 within PVDF/PMMA matrices. The FT-IR analysis demonstrated the miscibility between the PVDF and PMMA blend with the interaction between the polymer blend and Fe 3 O 4. The values of the band gap from UV-Vis study were decreased up to 4.21 eV, 3.01 eV for direct and indirect measurements, respectively. The magnetization was measured as a function of the applied magnetic field in the range of −2000-2000 Oersted. The curves of the magnetization indicated a paramagnetic behavior of pure Fe 3 O 4 nanoparticles and PVDF/PMMA-Fe 3 O 4 nanocomposites. The values of saturation magnetization for pure Fe 3 O 4 are nearly 75 emu/g, exhibiting a paramagnetic behavior, and it is decreased with the increase of Fe 3 O 4 content.

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“…1b and d, the stacking structure whose size is 50 nm and the thickness is 5 mm was observed on the surface of membrane, which may be SiO 2 as hydrolysate of m-BOT in TEOS. 13 The possible mechanism of hydrolysis is as follows: when Naon 212 membrane was dipped in m-BOT/TEOS/methanol solution, m-BOT was cross-linked with Si-O key to make them adhere to the membrane's surface and gradually concentrate as stacking structure.…”

Section: Resultsmentioning

confidence: 99%

Nafion®/SiO₂/m-BOT composite membranes for improved direct methanol fuel cell performance

et al. 2014

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Effect of functionalized montmorillonite addition on the thermal properties and ionic conductivity of PVDF–PEG polymer electrolyte

Cited by 41 publications

References 32 publications

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor

Analysis of Spectroscopic, Optical and Magnetic Behaviour of PVDF/PMMA Blend Embedded by Magnetite (Fe<sub>3</sub>O<sub>4</sub>) Nanoparticles

Nafion®/SiO₂/m-BOT composite membranes for improved direct methanol fuel cell performance

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Effect of functionalized montmorillonite addition on the thermal properties and ionic conductivity of PVDF–PEG polymer electrolyte

Cited by 41 publications

References 32 publications

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor

Analysis of Spectroscopic, Optical and Magnetic Behaviour of PVDF/PMMA Blend Embedded by Magnetite (Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;) Nanoparticles

Nafion®/SiO2/m-BOT composite membranes for improved direct methanol fuel cell performance

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Analysis of Spectroscopic, Optical and Magnetic Behaviour of PVDF/PMMA Blend Embedded by Magnetite (Fe<sub>3</sub>O<sub>4</sub>) Nanoparticles

Nafion®/SiO₂/m-BOT composite membranes for improved direct methanol fuel cell performance