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<p>This study introduces an innovative method for synthesizing ZnMoO<sub>4</sub>@MWCNT nanocomposites via a hydrothermal process, uniquely incorporating MWCNT nanowires into ZnMoO<sub>4</sub> nanoparticles. Metal oxide hybrids combined with conductive carbon nanomaterials offer significant improvements in performance. The electrochemical characteristics of the ZnMoO<sub>4</sub>@MWCNT composite is compared to pure ZnMoO<sub>4</sub>. The composite demonstrates a high specific capacitance of 1416 F g<sup>−1</sup> at 1 A g<sup>−1</sup> and excellent rate performance, maintaining 580 F g<sup>−1</sup> at 10 A g<sup>−1</sup>. It also provides outstanding cycling stability with only a 2.5% decrease in capacitance after 10,000 cycles. The improved performance is a result of unique morphology of ZnMoO<sub>4</sub> and the conductive MWCNT network, which promote efficient charge flow and ion transport. The asymmetric capacitor device achieves an energy density of 56.7 Wh kg<sup>−1</sup> at 770.1 W kg<sup>−1</sup> power density and operates within a stable voltage window of 0 – 1.6&#xa0;V, highlighting the potential of ZnMoO<sub>4</sub>@MWCNT composites for high-performance supercapacitors.</p>

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Nanostructured ZnMoO4@MWCNT Composite as a High-Performance Positive Electrode for Asymmetric Supercapacitors

  • 期刊论文

  • 发表日期：

    2025年7月16日

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  • N. Jafarulla,
  • Shanmugaiah Mathan Kumar

摘要

This study introduces an innovative method for synthesizing ZnMoO4@MWCNT nanocomposites via a hydrothermal process, uniquely incorporating MWCNT nanowires into ZnMoO4 nanoparticles. Metal oxide hybrids combined with conductive carbon nanomaterials offer significant improvements in performance. The electrochemical characteristics of the ZnMoO4@MWCNT composite is compared to pure ZnMoO4. The composite demonstrates a high specific capacitance of 1416 F g−1 at 1 A g−1 and excellent rate performance, maintaining 580 F g−1 at 10 A g−1. It also provides outstanding cycling stability with only a 2.5% decrease in capacitance after 10,000 cycles. The improved performance is a result of unique morphology of ZnMoO4 and the conductive MWCNT network, which promote efficient charge flow and ion transport. The asymmetric capacitor device achieves an energy density of 56.7 Wh kg−1 at 770.1 W kg−1 power density and operates within a stable voltage window of 0 – 1.6 V, highlighting the potential of ZnMoO4@MWCNT composites for high-performance supercapacitors.