Green Synthesis and Functional Evaluation of Ag–Polypyrrole/TeO2 Nanocomposites for Advanced Electronic Applications

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This is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.

Year : 2026 | Volume : 14 | 02 | Page :
    By

    Kusuma D,

  • Revanasiddappa M,

  • Raghavendra N,

  • Y T Ravikiran Y T,

  • Leela Kumar K,

  • Swathi G,

  1. Research Scholar, Research Centre-Department of Chemistry, PES Institute of Technology Bangalore South Campus (PESIT–BSC), Bengaluru, Karnataka, India
  2. Professor, Department of Chemistry, PES University – Electronic City campus, Bengaluru, Karnataka, India
  3. Research Associate, Research Centre-Department of Chemistry, East West Institute of Technology, Bengaluru, Karnataka, India
  4. Professor, Department of Physics, Government First Grade College, Holalkere, Karnataka, India
  5. Associate Professor, Department of Mechanical Engineering, Vignan’s Institute of Information Technology (A), Besides VSEZ, Vadlapudi Duvvada, Visakhapatnam, Andhra Pradesh, India
  6. Associate Professor, Department of Physics, Aditya Institute of Technology and Management (A), Tekkali, Srikakulam, Andhra Pradesh, India

Abstract

Ag–PPy/TeO₂ nanocomposites with TeO₂ loadings ranging from 2% to 10% were synthesized using an in-situ chemical polymerization method. Green tea extract, rich in phytochemicals, acted as both a reducing and stabilizing agent to facilitate the formation of metal oxide nanoparticles. The structural and morphological characteristics of the nanocomposites were analyzed using FTIR, PXRD, and SEM techniques. FTIR confirmed the successful integration of Ag, TeO₂, and PPy functional groups. PXRD patterns indicated the crystalline nature of the composites, while SEM and EDX analyses verified uniform particle distribution and elemental composition. Electrical studies demonstrated significantly enhanced AC conductivity in all TeO₂-containing composites compared to pure Ag-decorated PPy. The improvement in charge transport with increasing TeO₂ content highlights the material’s suitability for real-time sensing. Humidity-sensing evaluation revealed that the composite containing 6% TeO₂ exhibited superior response characteristics, making it the most promising candidate for practical sensor applications. Moreover, the excellent electrical behaviour of the developed composites suggests their potential for next-generation electronic and EMI-shielding devices.

Keywords: TeO₂, green tea extract, AC conductivity, humidity sensing, EMI shielding.

How to cite this article:
Kusuma D, Revanasiddappa M, Raghavendra N, Y T Ravikiran Y T, Leela Kumar K, Swathi G. Green Synthesis and Functional Evaluation of Ag–Polypyrrole/TeO2 Nanocomposites for Advanced Electronic Applications. Journal of Polymer & Composites. 2026; 14(02):-.
How to cite this URL:
Kusuma D, Revanasiddappa M, Raghavendra N, Y T Ravikiran Y T, Leela Kumar K, Swathi G. Green Synthesis and Functional Evaluation of Ag–Polypyrrole/TeO2 Nanocomposites for Advanced Electronic Applications. Journal of Polymer & Composites. 2026; 14(02):-. Available from: https://journals.stmjournals.com/jopc/article=2026/view=239950


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Ahead of Print Subscription Original Research
Volume 14
02
Received 01/11/2025
Accepted 11/12/2025
Published 10/04/2026
Publication Time 160 Days
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