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<p>In this study, bimetallic Co-doped SnSe nanoparticles are synthesized through the precipitation method. The nanoparticles were synthesized in five different ratios (i.e. 1%Co-doped SnSe named CSS1, 3%Co-doped SnSe named CSS2, 5%Co-doped SnSe named CSS3, 7%Co-doped SnSe named CSS4, and 9%Co-doped SnSe named CSS5). The CSS1, CSS2, CSS3, CSS4, and CSS5 nanoparticles were examined using X-ray diffraction (XRD),&#xa0;X-ray photoelectron spectroscopy (XPS),&#xa0;Fourier transform infra-red spectroscopy (FTIR), and&#xa0;transmission electron microscopy (TEM) studies. The XPS confirms the binding energy of the Co, Sn, and Se elements in the CSS3 nanoparticles. The TEM shows the images of interconnected rod-like and flower-like morphology. The CSS1, CSS2, CSS3, and CSS4 electrodes were used to study electrochemical performance in 1&#xa0;M KOH. The CSS4 electrode attains a capacitive retention of 78% and a coulombic efficiency of 96% even after 1000 GCD cycles. Further, the CV curves obtained before and after the cyclic test shows an enhancement after 1000 GCD cycles, indicating its stability for use in supercapacitor electrodes.</p>

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Fabrication of Co/SnSe material electrodes for symmetrical supercapacitors

  • 期刊论文

  • 发表日期：

    2026年1月3日

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  • Mohd Arif Dar,
  • S. R. Majid,
  • M. Satgunam,
  • Abu Danish Aiman Bin Abu Sofian,
  • L. Guganathan,
  • P. Arularasan,
  • I. Sankeeda,
  • Mohammad Rezaul Karim,
  • Hilal Ahmad Rather

摘要

In this study, bimetallic Co-doped SnSe nanoparticles are synthesized through the precipitation method. The nanoparticles were synthesized in five different ratios (i.e. 1%Co-doped SnSe named CSS1, 3%Co-doped SnSe named CSS2, 5%Co-doped SnSe named CSS3, 7%Co-doped SnSe named CSS4, and 9%Co-doped SnSe named CSS5). The CSS1, CSS2, CSS3, CSS4, and CSS5 nanoparticles were examined using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infra-red spectroscopy (FTIR), and transmission electron microscopy (TEM) studies. The XPS confirms the binding energy of the Co, Sn, and Se elements in the CSS3 nanoparticles. The TEM shows the images of interconnected rod-like and flower-like morphology. The CSS1, CSS2, CSS3, and CSS4 electrodes were used to study electrochemical performance in 1 M KOH. The CSS4 electrode attains a capacitive retention of 78% and a coulombic efficiency of 96% even after 1000 GCD cycles. Further, the CV curves obtained before and after the cyclic test shows an enhancement after 1000 GCD cycles, indicating its stability for use in supercapacitor electrodes.