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<p>In the present study, molybdenum disulfide (MoS₂) nanostructures were synthesized and systematically optimized to enhance their electrochemical energy storage performance. A hydrothermal synthesis route was employed using sodium molybdate dihydrate and thiourea as precursor materials, with the reaction carried out at 200&#xa0;°C. Structural characterization using Raman spectroscopy and X-ray diffraction verified that the 2H-phase MoS<sub>2</sub> was formed. Scanning electron microscopy with field emission demonstrated that variations in the precursor molar ratio significantly influence the morphology, thickness, and linear porosity of the resulting MoS₂ nanostructures. Optimization of the precursor composition led to a markedly improved electrochemical performance, delivering a high specific capacitance of 550 F g⁻<sup>1</sup> at a current density of 1 A g⁻<sup>1</sup>. These findings demonstrate that MoS₂ electrodes prepared via this optimized hydrothermal approach exhibit strong potential for advanced electrochemical energy storage applications.</p>

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Morphology-controlled 2H MoS2 nanostructures as efficient electrodes for energy storage devices

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • R. Asha,
  • B. Ramya,
  • S. Surender,
  • P. Elangovan

摘要

In the present study, molybdenum disulfide (MoS₂) nanostructures were synthesized and systematically optimized to enhance their electrochemical energy storage performance. A hydrothermal synthesis route was employed using sodium molybdate dihydrate and thiourea as precursor materials, with the reaction carried out at 200 °C. Structural characterization using Raman spectroscopy and X-ray diffraction verified that the 2H-phase MoS2 was formed. Scanning electron microscopy with field emission demonstrated that variations in the precursor molar ratio significantly influence the morphology, thickness, and linear porosity of the resulting MoS₂ nanostructures. Optimization of the precursor composition led to a markedly improved electrochemical performance, delivering a high specific capacitance of 550 F g⁻1 at a current density of 1 A g⁻1. These findings demonstrate that MoS₂ electrodes prepared via this optimized hydrothermal approach exhibit strong potential for advanced electrochemical energy storage applications.