en گروه کامپوزیت Composites Research Paper Research Paper <span style="font-size:11.0pt"><span style="line-height:107%"><span new="" roman="" style="font-family:" times="">The trimanganese tetraoxide (Mn₃O₄) nanostructured thin films doped with 2 mol % of nickel (Ni) and molybdenum (Mo) ions were deposited by a simple electrophoretic deposition technique. The structural, optical, and morphological studies of these doped thin films were compared with pure Mn₃O₄ thin films. X-ray diffraction (XRD) confirmed the tetragonal Hausmannite spinel structure. The Fourier transform infrared spectroscopy (FTIR) provided information about the molecular composition of the thin films and the presence of specific chemical bonds. The optical study and band gap energy values of all thin films were evaluated by the UV visible spectroscopy technique. The scanning electron microscopy (SEM) illustrated the morphological modifications of the Mn₃O₄thin films due to doping of the nickel and molybdenum ions. The Brunauer Emmett Teller (BET) method has confirmed the mesoporous nanostructure and nanopores of the thin films. The supercapacitive performance of the thin films was studied by cyclic voltammetry (CV), and galvanostatic charge discharge (GCD) techniques using the three-electrode arrangement. An aqueous 1M Na₂SO₄ electrolyte was used for the electrochemical study. The 2 mol % Ni doped <a name="_Hlk137673572">Mn₃O₄thin film </a>has shown maximum specific capacitance than pure and Mo doped Mn₃O₄thin films. Hence, this study proved the validity of the strategy - metal ion doping of Mn₃O₄ thin films to develop it as a potential candidate for electrode material in the futuristic energy storage and transportation devices. </span></span></span> Electrophoretic deposition,doping by metal ions,mesoporous,pseudocapacitors. 16 25 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-2092-1&slc_lang=en&sid=1 Tanaji Patil tanajipatil11@gmail.com 1800319475328460018752 1800319475328460018752 Yes Department of Physics, Bhogawati Mahavidyalaya, Kurukali, Shivaji University Kolhapur, Maharashtra S M Nikam icnee2024@gmail.com 1800319475328460018753 1800319475328460018753 No Department of Physics, Bhogawati Mahavidyalaya, Kurukali, Shivaji University Kolhapur, Maharashtra R S Kamble icnee2023@gmail.com 1800319475328460018754 1800319475328460018754 No Department of Chemistry, Bhogawati Mahavidyalaya, Kurukali, Shivaji University Kolhapur, Maharashtra Rahul Patil rrahulpatil@gmail.com 1800319475328460018755 1800319475328460018755 No Department of Physics, Yashwantrao Patil Science College Solankur, Shivaji University Kolhapur Mansing Takale icnee2022@gmail.com 1800319475328460018756 1800319475328460018756 No Department of Physics, Shivaji University Kolhapur Satish Gangawane gangawane.satish98@gmail.com 1800319475328460018757 1800319475328460018757 No Department of Physics, Doodhsakhar Mahavidyalaya Bidri, Shivaji University Kolhapur, Maharashtra