Synthesis of Nickel-Doped TiO2 Nanoparticles for Enhanced Supercapacitor Electrode Performance
Ashraf Hussain *
Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan.
Fakhar E Alam
Department of Economics, Pakhtunkhwa Economic Policy Research Institute (PEPRI), Abdul Wali Khan University, Mardan, Pakistan.
Madeeha Muzafar
Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan.
Khalid Mehmood
Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan.
Anum Rafique
University Institute of Physical Therapy, University of Lahore, Pakistan.
Suhrab Khan
Department of Computer and Software Technology, University of Swat, Swat, Pakistan.
Maria Kanwal
Department of Mathematics, University of Azad Jammu and Kashmir, Muzaffarabad, 1300, Azad Kashmir, Pakistan.
Riasat Ali
Department of Physics, Government College University Faisalabad, Faisalabad, Pakistan.
*Author to whom correspondence should be addressed.
Abstract
Nickel-doped TiO₂ nanoparticles for supercapacitor applications have been synthesized using a solution-based process. The nanoparticles were characterized using X-ray diffraction to confirm the phase and structural modifications induced by nickel doping. The morphology of the synthesized Ni-doped TiO₂ nanoparticles was investigated using a scanning electron microscope. Electrodes were prepared on stainless steel substrates via a drop-casting and drying process, incorporating the doped nanoparticles. The fabricated devices were subjected to electrochemical performance analysis, including cyclic voltammetry and electrochemical impedance spectroscopy. Electrochemical results indicate enhanced capacitive behavior due to nickel doping, highlighting the potential of Ni-doped TiO₂ nanoparticles as promising candidates for next-generation supercapacitor applications.
Keywords: Nanotechnology, Ni doped TiO2 nanoparticles, chemical method, supercapacitor, electrode performance