International Journal on Science and Technology

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Polyaniline and Its Nanocomposites: Synthesis, Characterization and Emerging Applications – A Review

Author(s) Rohini B. Thakare, Revati K. Sonawane, Vijay J. Naukudkar
Country India
Abstract Polyaniline (PANI) is one of the most widely investigated intrinsically conducting polymers due to its environmental stability, low cost and facile synthesis. It is one of the most widely investigated intrinsically conducting polymers due to its tunable electrical conductivity (~10⁻¹⁰ to 10² S cm⁻¹). This review provides a comprehensive of the synthesis strategies, characterization techniques and emerging applications of polyaniline and its nanocomposites. Various synthesis methods, including chemical oxidative polymerization, electrochemical synthesis and template-assisted approaches are discussed in terms of their influence on morphology, conductivity and performance. The integration of PANI with nanomaterials such as metal oxides, carbon nanostructures and biopolymers has led to the development of nanocomposites with significantly enhanced mechanical, electrical and chemical properties. The recent advances in the application of PANI nanocomposites in gas sensing, energy storage devices, corrosion protection, environmental remediation and biomedical fields are analyzed. Emerging applications of polyaniline and its nanocomposites in fields such as gas sensing, energy storage devices (supercapacitors and batteries), corrosion protection and environmental remediation are also systematically examined. Despite notable progress, challenges related to long-term stability, processability and scalability remain. The review concludes with future perspectives aimed at addressing these limitations and exploring new opportunities for the development of high-performance PANI-based functional materials.
Keywords Polyaniline (PANI), Conducting polymers, Nanocomposites, Chemical oxidative polymerization.
Field Engineering
Published In Volume 17, Issue 2, April-June 2026
Published On 2026-05-06
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