Tailoring the structural, optical, dielectric, and electrical properties of PEO/PVA blend using graphene nanoplates for energy storage devices

Alharbi, Ebtesam M.; Rajeh, A.

doi:10.1007/s10854-022-08999-9

Cited by 63 publications

(19 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We saw that the electrical conductivity improved with increasing frequency, which is an indication of the polymer matrix's disorder. The electrical behavior of the films created exhibits two distinct dispersion zones; a low‐frequencies dispersive area brought on by electrode polarization and a high‐frequencies plateau area brought on by rising DC conductivity 51–55 . The Juncher equation can be used to describe the electrical conductivity of all samples under investigation:

σ_{ac} = σ_{dc} + C ω^{S},

where, S represents the exponential power and C appears to be fixed value.…”

Section: Resultsmentioning

confidence: 99%

“…The electrical behavior of the films created exhibits two distinct dispersion zones; a low-frequencies dispersive area brought on by electrode polarization and a high-frequencies plateau area brought on by rising DC conductivity. [51][52][53][54][55] The Juncher equation can be used to describe the electrical conductivity of all samples under investigation:…”

Section: Electrical Behaviormentioning

confidence: 99%

See 1 more Smart Citation

Hybrid GO/TiO₂ nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Alsalmah

Almehmadi

Farea

et al. 2023

Polymers for Advanced Techs

Self Cite

View full text Add to dashboard Cite

In this study, novel flexible polymer nanocomposite films formed of polyvinyl alcohol (PVA), sodium alginate (NaAlg), titanium dioxide (TiO2) and graphene oxide (GO) as nanofiller are fabricated by using casting method. The PVA/NaAlg‐GO/TiO2 nanocomposite films are characterized using various techniques. The synergistic effects of GO/TiO2 on the electrical, dielectric properties, and the energy density efficiency of PVA/NaAlg blend have been investigated in the range of frequency from 10 Hz to 7 MHz. The XRD data showed that the intensity of the PVA/NaAlg‐GO/TiO2 nanocomposites films decrease with nanofiller concentration. The FTIR spectroscopy provides proof that the complex formed. The optical studies were carried out using UV–Vis. spectroscopy. The energy bandgap values of PVA/NaAlg‐GO/TiO2 nanocomposite films were calculated using Tauc's plot. It is shown that the host matrix's Eg value decreases from 4.97 to 4.29 eV for direct transitions and from 4.37 to 2.29 eV for indirect transitions. The electrical and dielectric parameters of the nanocomposites showed that the maximum electrical properties were observed for the composite with 8 wt% loading of GO/TiO2. The σdc increased from 2.45 × 10−9 to 5.02 × 10−7 S cm−1. In addition, frequency exponent S decreased from 0.82 to 0.54. These findings demonstrated that there are significant modifications in the fabricated samples, which open the road for utilizing the PVA/NaAlg‐GO/TiO2 nanocomposite as flexible films for solar cells and electrical energy storage applications.

show abstract

σ_{ac} = σ_{dc} + C ω^{S},

where, S represents the exponential power and C appears to be fixed value.…”

Section: Resultsmentioning

confidence: 99%

Section: Electrical Behaviormentioning

confidence: 99%

Hybrid GO/TiO₂ nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Alsalmah

Almehmadi

Farea

et al. 2023

Polymers for Advanced Techs

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since the resultant values of s were substantially less than 1, it was concluded that these materials utilized a hopping mechanism for charge conduction. [ 38 ] For samples of 8% ZnO/Fe 3 O 4 , the

σ_{italicdc}

of nanocomposites reached 3.66 × 10 −8 S cm −1 . A three‐dimensional conductive channel was also formed by the NPs within the polymeric nanocomposite films, as seen by the increases in dc values.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of sodium alginate/polyvinyl alcohol/zinc oxide/iron oxide nanocomposites for electrochemical applications

et al. 2022

Self Cite

View full text Add to dashboard Cite

Polymer nanocomposites films, based on sodium alginate (NaAlg) and polyvinyl alcohol (PVA) complexed with zinc oxide nanoparticles (ZnO NPs) and iron oxide nanorods (Fe 3 O 4 NRs) as nanofiller, were prepared by solution casting technique. Different techniques were used to describe the prepared films.XRD and FTIR were used to pinpoint the complexation of the nanofiller with the polymer mixture. The XRD investigation verified the existence of the crystalline peaks of ZnO/Fe 3 O 4 NPs in the polymeric matrices. The average particle size of nanocomposite was 23 nm. TEM image of the ZnO nanopowder confirming the spherical form of nanoparticles with average size 30 nm. The

show abstract

“…This significantly enhances the electrical, dielectric, optical, and thermal properties of the resulting polymer nanocomposite. [6][7][8][9][10] In electrochemical energy-storing devices, they contain electrochemically active materialcoated current collectors (electrodes that are usually fabricated from metal oxides and carbonbased nanomaterials) and an electrolytic media. The polarization characteristics of virgin materials are usually enhanced with the incorporation of nanomaterials into electrolytes and electrodes, resulting in enhanced electrochemical characteristics of energy-storing devices.…”

Section: Introductionmentioning

confidence: 99%

Effect of boehmite nanoparticles on structural, optical, thermal, mechanical and electrical properties of poly (methyl methacrylate) nanocomposites for flexible optoelectronic devices

Vyshakh

Arun

Sathian

et al. 2023

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

The structural, optical, morphological and thermal properties of poly (methyl methacrylate) (PMMA)/boehmite nanocomposite films were studied by Fourier transform infrared spectroscopy (FT-IR), UV-Vis spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) studies. The FT-IR spectra of composites showed the characteristic band of boehmite nanoparticles at 518 cm−1 indicating an effective interaction between PMMA and boehmite. The UV-visible measurements showed that the optical energy gaps for the direct permitted transitions decreased as boehmite content increased. The orientation of nanoparticles observed from XRD revealed that the addition of boehmite increases the crystallinity of PMMA. The SEM analysis showed the uniform distribution of boehmite in the PMMA matrix. The shift in glass transition and melting temperatures to higher temperature domains were revealed by DSC analysis. From the TGA studies, the reinforcement of PMMA with boehmite nanoparticles increases thermal stability. The electrical conductivity was measured using the impedance technique, and it was studied as a function of nanoparticles loading, applied frequency ranging from 100 to 106 Hz and at different temperatures. The AC conductivity of the composite increases with frequency and temperature. The activation energy was also measured for all samples at various applied frequencies, and it was observed that it decreased with increasing nanoparticle loading. The dielectric constant of PMMA increases with nanoparticle concentration up to 7 wt%. The modulus, tensile strength, hardness, and impact properties of the PMMA/boehmite nanocomposite films were significantly enhanced by the reinforcement of nanoparticles into the polymer matrix. The excellent optical properties, mechanical strength and electrical properties obtained for 7 wt% loaded nanocomposite films enable them to be used in the construction of electromagnetic induction shielding materials, conducting adhesives, and flame-resistant flexible optoelectronic devices.

show abstract

Tailoring the structural, optical, dielectric, and electrical properties of PEO/PVA blend using graphene nanoplates for energy storage devices

Cited by 63 publications

References 39 publications

Hybrid GO/TiO₂ nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Hybrid GO/TiO₂ nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Synthesis and characterization of sodium alginate/polyvinyl alcohol/zinc oxide/iron oxide nanocomposites for electrochemical applications

Effect of boehmite nanoparticles on structural, optical, thermal, mechanical and electrical properties of poly (methyl methacrylate) nanocomposites for flexible optoelectronic devices

Contact Info

Product

Resources

About

Tailoring the structural, optical, dielectric, and electrical properties of PEO/PVA blend using graphene nanoplates for energy storage devices

Cited by 63 publications

References 39 publications

Hybrid GO/TiO2 nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Hybrid GO/TiO2 nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Synthesis and characterization of sodium alginate/polyvinyl alcohol/zinc oxide/iron oxide nanocomposites for electrochemical applications

Effect of boehmite nanoparticles on structural, optical, thermal, mechanical and electrical properties of poly (methyl methacrylate) nanocomposites for flexible optoelectronic devices

Contact Info

Product

Resources

About

Hybrid GO/TiO₂ nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices

Hybrid GO/TiO₂ nanoparticles reinforced NaAlg/PVA blend: Nanocomposites for high‐performance energy storage devices