Influence of gamma radiation on structure, morphology, and optical properties of GO and GO/PVA nanocomposite

Muradov, M. B.; Baghirov, Mahammad Baghir; Eyvazova, Goncha M.; Gahramanli, Lala; Mammadyarova, Sevinj; Aliyeva, Gunel; Huseynov, Elchin; Abdullayev, Mahammadali

doi:10.1016/j.radphyschem.2023.110926

Cited by 12 publications

(1 citation statement)

References 37 publications

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“…Thus, PVA has many applications in terms of its biocompatibility, high dielectric properties, transparency, and easy solubility in water. 13–17 Also, studies show that the sheet resistance and optical transmittance of AgNWs/PVA nanocomposites can be changed by controlling the distribution density of AgNWs within the composite. 18,19…”

Section: Introductionmentioning

confidence: 99%

Preparation of anisotropic AgNWs/PVA/Ag₂S nanocomposites via a vapor-phase sulfidation process

Baghirov,

Muradov,

Eyvazova

et al. 2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Preparation of anisotropic AgNWs/PVA/Ag₂S nanocomposites via a vapor-phase sulfidation process

Baghirov,

Muradov,

Eyvazova

et al. 2024

RSC Adv.

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Enhanced proton conductivity of SPEEK membranes by constructing hydrogen bond network through doping ionic liquid and graphene oxide

Lv,

Qu,

Sun

et al. 2023

Polymer Composites

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So as to improve proton conductivity at medium temperatures while reducing the loss of ionic liquids (ILs), this article fabricated a series of hybrid membranes with sulfonated poly (ether ether ketone) (SPEEK) as their base material, 1‐allyl‐3‐methylimidazolium chloride ([AMIM][Cl]) as their primary proton conductor, and graphene oxide (GO) as their filler. The characterization results showed that the –SO3H groups of SPEEK formed acid–base pairs with the imidazole ring of [AMIM][Cl] at the interface where electrostatic attraction inhibited the main‐chain migration of the SPEEK. At the same time, the large hydrogen bond network formed between [AMIM][Cl], GO and SPEEK provided more jump sites for proton transfer. Proton conduction of the prepared membranes was enhanced by way of low potential energy barriers. At 120°C, SPEEK/IL/GO‐2% exhibited a proton conductivity of 21.35 mS/cm, and the IL loss rate was 20.17%. The characterization results demonstrated that the prepared SPEEK/IL/GO composite membranes had excellent physicochemical properties, dimensional stability, high proton conductivity, and low IL loss, which were expected to be used in practical conditions at medium temperature.Highlights Large hydrogen bonding network provides additional proton hopping sites. Physical cross‐linking limits the leaching of ionic liquid. SPEEK/IL/GO‐2% membrane achieves a conductivity of 21.35 mS/cm at 120°C.

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Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

Addayeva,

Azizian‐Kalandaragh,

Niftiyev

et al. 2024

Vinyl Additive Technology

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The control of dielectric permittivity and conductivity is a crucial factor in the development of certain electronic components. Materials based on layered structures and polyvinyl alcohol (PVA) show great potential for applications in supercapacitors. Therefore, the creation of polymer composites based on layered semiconductors and the determination of their physical properties is significant. In this investigation, a composite comprising 1 wt% FeGaInS4 dispersed in PVA was synthesized through mechanical mixing, where the FeGaInS4 crystal was incorporated into the PVA matrix. This study explores the physical characteristics of this composite for the first time. The structure of the composite was analyzed using x‐ray diffraction (XRD). Electrical properties and conductivity mechanisms were examined using a dielectric spectrometer. It was determined that the hopping model conductivity mechanism predominates in the FeGaInS4/PVA nanocomposite. For the 1 wt% FeGaInS4/PVA composite, system parameters were calculated at a temperature of 313 K and a frequency of 5 × 103 Hz. The parameters found are s = 0.814, potential barrier height WM = 0.868 eV, hopping length Rω = 14.7 × 10−10 m, and the concentration of pairs of states between, which charge carriers hop N = 1.396 × 1026 m−3.Highlights 1 wt% FeGaInS4 composite synthesized via mechanical assembly. Small crystals boost dielectric constant by 1.5× via interfacial polarization. The system parameters are defined: s = 0.814, WM = 0.868 eV, Rω = 14.7 × 10−10 m. Electrical conduction is multifaceted; conductance hopping dominates. Loss tangent decreases due to interfacial polarization effects.

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Influence of gamma radiation on structure, morphology, and optical properties of GO and GO/PVA nanocomposite

Cited by 12 publications

References 37 publications

Preparation of anisotropic AgNWs/PVA/Ag₂S nanocomposites via a vapor-phase sulfidation process

Preparation of anisotropic AgNWs/PVA/Ag₂S nanocomposites via a vapor-phase sulfidation process

Enhanced proton conductivity of SPEEK membranes by constructing hydrogen bond network through doping ionic liquid and graphene oxide

Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials

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Influence of gamma radiation on structure, morphology, and optical properties of GO and GO/PVA nanocomposite

Cited by 12 publications

References 37 publications

Preparation of anisotropic AgNWs/PVA/Ag2S nanocomposites via a vapor-phase sulfidation process

Preparation of anisotropic AgNWs/PVA/Ag2S nanocomposites via a vapor-phase sulfidation process

Enhanced proton conductivity of SPEEK membranes by constructing hydrogen bond network through doping ionic liquid and graphene oxide

Fabrication and dielectric spectroscopy analysis of FeGaInS4/PVA composite materials

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Preparation of anisotropic AgNWs/PVA/Ag₂S nanocomposites via a vapor-phase sulfidation process

Preparation of anisotropic AgNWs/PVA/Ag₂S nanocomposites via a vapor-phase sulfidation process

Fabrication and dielectric spectroscopy analysis of FeGaInS₄/PVA composite materials