Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 20 2 2024 05 01 Contemporary Advances in Metal Oxide Doped Polypyrrole Composites: A Comprehensive Review 143 159 715689 10.22034/ijnn.2024.2005501.2391 EN Nandini V. Iyer Symbiosis Institute of Technology, Symbiosis International (Deemed University), 412115, Lavale, Pune, India Department of Applied Sciences, COEP Technological University, 411005, Pune, India 0009-0000-4203-053X Ganesh L. Agawane Department of Chemistry, Faculty of Science and Technology, JSPM University, 412207, Pune, India Chandan Patel Department of Chemistry, Faculty of Science and Technology, JSPM University, 412207, Pune, India Jayant A. Kher Department of Applied Sciences, COEP Technological University, 411005, Pune, India Shekhar D. Bhame Symbiosis Institute of Technology, Symbiosis International (Deemed University), 412115, Lavale, Pune, India 0000-0002-3430-1114 Journal Article 2023 06 29 <em>   Intrinsically conducting polymers (ICPs) have revolutionized materials science with their versatile applications in electronics, sensors, and energy storage. This review explores the synthesis, properties, and applications of polypyrrole (PPy) and its hybrid nanocomposites with metal oxides, emphasizing advancements in electrical conductivity, stability, and performance. PPy, a prominent conducting polymer, is synthesized through chemical polymerization or electrochemical methods and exhibits high conductivity and mechanical flexibility. Doping PPy with metal oxides like nickel oxide (NiO) and tungsten oxide (WO₃) enhances its properties for various applications. PPy-NiO composites show improved conductivity and dielectric properties, while PPy-WO3 composites demonstrate superior electrochemical performance in supercapacitors. This review highlights recent advancements in synthesizing and characterizing these composites, including X-Ray Diffraction (XRD), Ultraviolet-Visible Spectroscopy (UV-VIS), and Raman Spectroscopy. The findings underscore the potential of PPy-metal oxide composites in advancing technologies such as energy storage, corrosion protection, and sensor development.</em> https://www.ijnnonline.net/article_715689_b11b1d19ddb0ed739663fe0ee88802f4.pdf