Ahmad Muhammad, Nawaz Tehseen, Hussain Iftikhar, Amara Umay, Chen Xi, Eddahani Yassine, Walia Rajat, Zhang Kaili
Department of Mechanical Engineering, City University of Hong Kong, 3 Tat Chee Avenue, Kowloon, 999077, Hong Kong.
A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA.
Small Methods. 2025 Apr;9(4):e2401239. doi: 10.1002/smtd.202401239. Epub 2024 Sep 19.
Metal telluride-based nanomaterials have recently gained attention as promising candidates for enhancing the performance of electrodes in energy storage devices. In this study, Co-Zr-Te@CuO electrode materials engineered through strategic approach are introduced, involving the deposition of a Co-Zr metal-organic framework (MOF) on CuO nanowires, followed by a tellurization. This composite material demonstrates an expanded potential window of 1.2 V, making it potential electrode material for supercapacitor applications. Electrochemical evaluations reveal that the Co-Zr-Te@CuO electrode exhibits 576 C g, 1.8 times higher than Co-Zr-MOF@CuO. Furthermore, density functional theory (DFT) calculations confirm enhancements in conductivity and explains the synergistic effects present within the heterostructure. Hybrid supercapacitor (HSC) device achieves a peak energy density of 69.4 Wh kg at a power density of 1.4 kW kg. This evidence of Co-Zr-Te@CuO effective electrode performance demonstrates its potential and robust stability for real-world energy storage applications.
基于碲化金属的纳米材料最近作为增强储能设备中电极性能的有前景的候选材料而受到关注。在本研究中，介绍了通过策略性方法设计的Co-Zr-Te@CuO电极材料，该方法包括在CuO纳米线上沉积Co-Zr金属有机框架（MOF），然后进行碲化。这种复合材料展示了1.2 V的扩展电位窗口，使其成为超级电容器应用的潜在电极材料。电化学评估表明，Co-Zr-Te@CuO电极表现出576 C g，比Co-Zr-MOF@CuO高1.8倍。此外，密度泛函理论（DFT）计算证实了导电性的增强，并解释了异质结构中存在的协同效应。混合超级电容器（HSC）装置在功率密度为1.4 kW kg时实现了69.4 Wh kg的峰值能量密度。Co-Zr-Te@CuO有效电极性能的这一证据证明了其在实际储能应用中的潜力和强大稳定性。
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