CoMn2O₄纳米纤维：增强高性能超级电容器的一维电极材料

IF 4 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals Pub Date : 2025-01-21 DOI:10.1016/j.synthmet.2025.117836

Sidraya N. Jirankalagi , Avinash C. Molane , Sarjerao M. Sutar , Ramesh N. Mulik , Manickam Selvaraj , Kalathiparambil Rajendra Pai Sunajadevi , Vikas B. Patil

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引用次数: 0

摘要

采用静电纺丝法制备了一维CoMn2O4纳米纤维，为储能装置-超级电容器电极材料的设计提供了一种新的思路。场发射扫描电镜（FESEM）与EDX证实了具有所需成分的高多孔CoMn2O4相。元素映射研究证实了Co、Mn和O元素在纳米纤维中的均匀分布。电化学研究强调了结构空隙和间距在提高储能能力方面的关键作用，确立了CoMn2O4是一种很有前途的电极材料。比能和功率的研究结果分别为93.84 Whr/kg和55.20 kW/kg。此外，比电容测定返回937.42 F/g，表明在1000次循环中具有优异的充放电性能，电容保持率为93.3 %。此外，柔性对称超级电容器有望表现出优异的灵活性和电化学稳定性，在电流密度为1 mA/cm²时，比能量为232 Wh/kg，比功率为84 kW/kg。这些发现促进了我们对CoMn2O4纳米纤维的理解，并为开发用于各种应用的高效稳定的储能系统提供了见解。

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Engineering CoMn2O₄ nanofibers: Enhancing one-dimensional electrode materials for high-performance supercapacitors

One-dimensional CoMn₂O₄ nanofibers were developed via the electrospinning method, offers a novel approach for designing electrode materials for energy storage device -supercapacitors. Field emission scanning electron microscopy (FESEM) with EDX confirmed the highly porous CoMn₂O₄ phase with desired composition. Elemental mapping studies confirmed uniform distribution of Co, Mn, and O elements throughout the nanofibers.Electrochemical studies underscored the crucial role of structural voids and spacing in enhancing energy storage capacity, establishing CoMn₂O₄ as a promising electrode material. Specific energy and power studies yielded remarkable results of 93.84 Whr/kg and 55.20 kW/kg, respectively. Additionally, specific capacitance determination returned 937.42 F/g, indicating exceptional charging and discharging performance over 1000 cycles with 93.3 % capacitance retention. Moreover, the flexible symmetric supercapacitor is expected to demonstrate exceptional flexibility and electrochemical stability, achieving a specific energy of 232 Wh/kg and a specific power of 84 kW/kg at a current density of 1 mA/cm². These findings advance our understanding of CoMn₂O₄ nanofibers and offer insights into developing efficient and stable energy storage systems for diverse applications.

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来源期刊

Synthetic Metals 工程技术-材料科学：综合

CiteScore

8.30

自引率

4.50%

发文量

189

审稿时长

33 days

期刊介绍： This journal is an international medium for the rapid publication of original research papers, short communications and subject reviews dealing with research on and applications of electronic polymers and electronic molecular materials including novel carbon architectures. These functional materials have the properties of metals, semiconductors or magnets and are distinguishable from elemental and alloy/binary metals, semiconductors and magnets.