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<p>Trimetallic CoNiMo-hydroxide nanoflakes structure&#xa0;has been effectively prepared on carbon cloth using hydrothermal method. Structural and morphology analysis of the prepared samples has been performed using XRD, FTIR, and FESEM. Galvanostatic charging–discharging (GCD), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV) analysis offer valuable insights into the electrochemical properties of the synthesized materials. In this study, varying molar ratios of Co, Ni, and Mo salts are employed to modulate the morphology and electrochemical characteristics of the samples. As the concentration of Mo changes, the morphology transitions from nanorods to nanoflakes, which contributes to an increase in the specific capacitance (C<sub>sp</sub>) of the electrode. For CoNiOH, obtained C<sub>sp</sub> value is 66.28 F/g at current density of 1A/g which is enhanced to 293.4 F/g at 1 A/g by incorporating Mo in an optimized concentration ratio. The CoNi<sub>(1-x)</sub>Mo<sub>x</sub>OH electrode exhibits a significant specific capacitance of 307.8 F/g at 0.5 A/g current density. This electrode also showed good cyclic stability (i.e., the capacitance retention of 80% after 1200 cycles). Based on the performance, CoNi<sub>(1-x)</sub>Mo<sub>x</sub>OH as a hybrid supercapacitive material has high prospective for applications involving energy storage devices.</p>

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Rational design of CoNiMo trimetallic hydroxide nanostructured flexible electrode for supercapacitor application

  • 期刊论文

  • 发表日期：

    2025年1月22日

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  • Trupti Tanaya Mishra,
  • Mohua Chakraborty,
  • Chintak Kamalesh Parashar,
  • Jiwajyoti Mahanta,
  • Partho Sarathi Gooh Pattader,
  • Dhrubojyoti Roy

摘要

Trimetallic CoNiMo-hydroxide nanoflakes structure has been effectively prepared on carbon cloth using hydrothermal method. Structural and morphology analysis of the prepared samples has been performed using XRD, FTIR, and FESEM. Galvanostatic charging–discharging (GCD), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV) analysis offer valuable insights into the electrochemical properties of the synthesized materials. In this study, varying molar ratios of Co, Ni, and Mo salts are employed to modulate the morphology and electrochemical characteristics of the samples. As the concentration of Mo changes, the morphology transitions from nanorods to nanoflakes, which contributes to an increase in the specific capacitance (Csp) of the electrode. For CoNiOH, obtained Csp value is 66.28 F/g at current density of 1A/g which is enhanced to 293.4 F/g at 1 A/g by incorporating Mo in an optimized concentration ratio. The CoNi(1-x)MoxOH electrode exhibits a significant specific capacitance of 307.8 F/g at 0.5 A/g current density. This electrode also showed good cyclic stability (i.e., the capacitance retention of 80% after 1200 cycles). Based on the performance, CoNi(1-x)MoxOH as a hybrid supercapacitive material has high prospective for applications involving energy storage devices.