• Muhammad, Zahir
• Iqbal, Hifza
• Haq, Mahmood Ul
• Nazim, Amina
• Hassan, Ather

Abstract

<jats:title>Abstract</jats:title><jats:p>Metal sulfides exhibit rich surface chemistry and electrochemical features and their comparison with polyaniline may give a new perspective to supercapacitor applications. Active chromium sulfide nanoparticles and polyaniline nanofibers were synthesized using the solvothermal and polymerization process, respectively. Chromium sulfide nanoparticles reveal a good specific capacitance of 594.38 F/g at the current density of 1 mA/cm<jats:sup>2</jats:sup>, meanwhile, the polyaniline nanofibers exhibit a maximum specific capacitance of 150 F/g at the current density of 4 mA/cm<jats:sup>2</jats:sup>, through the galvanostatic charge‐discharge profile. The power density of the polyaniline was found 3111 W/Kg, which is greater due to the conductive nature of polyaniline, meanwhile, chromium sulfide nanoparticles also exhibit a reasonable power density of 2403.06 W/Kg. Comparatively, chromium sulfide nanoparticles maintained specific capacitance and power density. The two electrodes asymmetric system exhibits a good coulomb efficiency of 100 % at 1 mA/cm<jats:sup>2</jats:sup>. So, chromium sulfide nanoparticles exhibit good electrochemical characteristics for supercapacitor applications.</jats:p>

Topics

• nanoparticle
• density
• impedance spectroscopy
• surface
• chromium
• current density