Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices
Nanocomposite based on tungsten oxide (WO3), graphene oxide (GO), and poly (anthranilic acid) were synthesized and doped into epoxy resin film. Nanocomposite with varying WO3 content (GO-10 %WO3, GO-20 %WO3, and GO-30 %WO3) were blended with epoxy-PANA to produce hybrid films. The structural and mor...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918525000642 |
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| author | Abdulwahhab H. Majeed Wasan Abdulfatah Hussen Ahmed Najem Abd Zaid H. Mahmoud Ehsan kianfar |
| author_facet | Abdulwahhab H. Majeed Wasan Abdulfatah Hussen Ahmed Najem Abd Zaid H. Mahmoud Ehsan kianfar |
| author_sort | Abdulwahhab H. Majeed |
| collection | DOAJ |
| description | Nanocomposite based on tungsten oxide (WO3), graphene oxide (GO), and poly (anthranilic acid) were synthesized and doped into epoxy resin film. Nanocomposite with varying WO3 content (GO-10 %WO3, GO-20 %WO3, and GO-30 %WO3) were blended with epoxy-PANA to produce hybrid films. The structural and morphological features were investigated by FTIR, XRD, EDX, and SEM. The dielectric properties including (real dielectric constant (real permittivity) (ε′), imaginary dielectric constant (imaginary permittivity) (ε″), loss factor (tanδ), and electrical conductivity (σ ac)) were evaluated across frequency of 100 kHz to 5 MHz. All prepared films appeared reducing in ε′, ε″ and tan δ with increasing frequency, while (σ ac) increased. Notably, higher WO3 loading improvement both permittivity and conductivity, with GO-30 %WO3/epoxy-PANA appearing the most significant improvement. These results highlight the potential of prepared composite in dielectric and conductive applications. |
| format | Article |
| id | doaj-art-6211c4bf8b9e4a37bb4cdf3086f578ef |
| institution | Kabale University |
| issn | 1026-9185 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj-art-6211c4bf8b9e4a37bb4cdf3086f578ef2025-08-20T03:51:09ZengElsevierSouth African Journal of Chemical Engineering1026-91852025-07-015330331810.1016/j.sajce.2025.05.009Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matricesAbdulwahhab H. Majeed0Wasan Abdulfatah Hussen1Ahmed Najem Abd2Zaid H. Mahmoud3Ehsan kianfar4Department of Chemistry, College of Science, University of Diyala, Diyala, IraqDepartment of Chemistry, College of Science, University of Diyala, Diyala, IraqDepartment of Chemistry, College of Science, University of Diyala, Diyala, IraqDepartment of Chemistry, College of Science, University of Diyala, Diyala, Iraq; Corresponding authors.Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran; Corresponding authors.Nanocomposite based on tungsten oxide (WO3), graphene oxide (GO), and poly (anthranilic acid) were synthesized and doped into epoxy resin film. Nanocomposite with varying WO3 content (GO-10 %WO3, GO-20 %WO3, and GO-30 %WO3) were blended with epoxy-PANA to produce hybrid films. The structural and morphological features were investigated by FTIR, XRD, EDX, and SEM. The dielectric properties including (real dielectric constant (real permittivity) (ε′), imaginary dielectric constant (imaginary permittivity) (ε″), loss factor (tanδ), and electrical conductivity (σ ac)) were evaluated across frequency of 100 kHz to 5 MHz. All prepared films appeared reducing in ε′, ε″ and tan δ with increasing frequency, while (σ ac) increased. Notably, higher WO3 loading improvement both permittivity and conductivity, with GO-30 %WO3/epoxy-PANA appearing the most significant improvement. These results highlight the potential of prepared composite in dielectric and conductive applications.http://www.sciencedirect.com/science/article/pii/S1026918525000642Graphene oxideTungsten oxideNanocompositeElectrical conductivityDielectric constant |
| spellingShingle | Abdulwahhab H. Majeed Wasan Abdulfatah Hussen Ahmed Najem Abd Zaid H. Mahmoud Ehsan kianfar Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices South African Journal of Chemical Engineering Graphene oxide Tungsten oxide Nanocomposite Electrical conductivity Dielectric constant |
| title | Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices |
| title_full | Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices |
| title_fullStr | Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices |
| title_full_unstemmed | Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices |
| title_short | Graphene–tungsten oxide hybrid nanocomposites for high-performance dielectric films in conductive polymer matrices |
| title_sort | graphene tungsten oxide hybrid nanocomposites for high performance dielectric films in conductive polymer matrices |
| topic | Graphene oxide Tungsten oxide Nanocomposite Electrical conductivity Dielectric constant |
| url | http://www.sciencedirect.com/science/article/pii/S1026918525000642 |
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